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Finding the Fourth Proportional to 178,308,000.40, 249,121,017.20 and 178,308,000.40

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Solution

The fourth proportional to 178,308,000.40, 249,121,017.20 and 178,308,000.40 is: 249,121,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,308,000.40 : 249,121,017.20 = 178,308,000.40 : x
  2. Step 2: Convert to fraction form
    178,308,000.40/249,121,017.20 = 178,308,000.40/x
  3. Step 3: Cross multiply
    178,308,000.40x = 249,121,017.20 × 178,308,000.40
  4. Step 4: Simplify right side
    178,308,000.40x = 44,420,270,434,546,008
  5. Step 5: Solve for x
    x = 44,420,270,434,546,008/178,308,000.40
  6. Step 6: Final answer
    x = 249,121,017.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.