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Finding the Fourth Proportional to 249,722.72, 344,618.88 and 136,545.92

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Solution

The fourth proportional to 249,722.72, 344,618.88 and 136,545.92 is: 188,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,722.72 : 344,618.88 = 136,545.92 : x
  2. Step 2: Convert to fraction form
    249,722.72/344,618.88 = 136,545.92/x
  3. Step 3: Cross multiply
    249,722.72x = 344,618.88 × 136,545.92
  4. Step 4: Simplify right side
    249,722.72x = 47,056,302,018.97
  5. Step 5: Solve for x
    x = 47,056,302,018.97/249,722.72
  6. Step 6: Final answer
    x = 188,434.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.