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Finding the Fourth Proportional to 249,640.55, 374,423.92 and 91,832.10

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Solution

The fourth proportional to 249,640.55, 374,423.92 and 91,832.10 is: 137,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,640.55 : 374,423.92 = 91,832.10 : x
  2. Step 2: Convert to fraction form
    249,640.55/374,423.92 = 91,832.10/x
  3. Step 3: Cross multiply
    249,640.55x = 374,423.92 × 91,832.10
  4. Step 4: Simplify right side
    249,640.55x = 34,384,132,532.55
  5. Step 5: Solve for x
    x = 34,384,132,532.55/249,640.55
  6. Step 6: Final answer
    x = 137,734.57

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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.