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Finding the Fourth Proportional to 155,615.30, 232,904.55 and 136,952.90

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Solution

The fourth proportional to 155,615.30, 232,904.55 and 136,952.90 is: 204,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,615.30 : 232,904.55 = 136,952.90 : x
  2. Step 2: Convert to fraction form
    155,615.30/232,904.55 = 136,952.90/x
  3. Step 3: Cross multiply
    155,615.30x = 232,904.55 × 136,952.90
  4. Step 4: Simplify right side
    155,615.30x = 31,896,953,545.70
  5. Step 5: Solve for x
    x = 31,896,953,545.70/155,615.30
  6. Step 6: Final answer
    x = 204,973.12

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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.