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Finding the Fourth Proportional to 249,951.20, 374,635.20 and 100,117.40

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Solution

The fourth proportional to 249,951.20, 374,635.20 and 100,117.40 is: 150,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,951.20 : 374,635.20 = 100,117.40 : x
  2. Step 2: Convert to fraction form
    249,951.20/374,635.20 = 100,117.40/x
  3. Step 3: Cross multiply
    249,951.20x = 374,635.20 × 100,117.40
  4. Step 4: Simplify right side
    249,951.20x = 37,507,502,172.48
  5. Step 5: Solve for x
    x = 37,507,502,172.48/249,951.20
  6. Step 6: Final answer
    x = 150,059.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.