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Finding the Fourth Proportional to 249,156.76, 373,512.90 and 91,348.40

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Solution

The fourth proportional to 249,156.76, 373,512.90 and 91,348.40 is: 136,941.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,156.76 : 373,512.90 = 91,348.40 : x
  2. Step 2: Convert to fraction form
    249,156.76/373,512.90 = 91,348.40/x
  3. Step 3: Cross multiply
    249,156.76x = 373,512.90 × 91,348.40
  4. Step 4: Simplify right side
    249,156.76x = 34,119,805,794.36
  5. Step 5: Solve for x
    x = 34,119,805,794.36/249,156.76
  6. Step 6: Final answer
    x = 136,941.12

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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.