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Finding the Fourth Proportional to 249,898.10, 374,866.59 and 72,407.66

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Solution

The fourth proportional to 249,898.10, 374,866.59 and 72,407.66 is: 108,617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,898.10 : 374,866.59 = 72,407.66 : x
  2. Step 2: Convert to fraction form
    249,898.10/374,866.59 = 72,407.66/x
  3. Step 3: Cross multiply
    249,898.10x = 374,866.59 × 72,407.66
  4. Step 4: Simplify right side
    249,898.10x = 27,143,212,594.08
  5. Step 5: Solve for x
    x = 27,143,212,594.08/249,898.10
  6. Step 6: Final answer
    x = 108,617.12

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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.