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Finding the Fourth Proportional to 155,587.80, 232,863.30 and 136,925.40

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Solution

The fourth proportional to 155,587.80, 232,863.30 and 136,925.40 is: 204,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,587.80 : 232,863.30 = 136,925.40 : x
  2. Step 2: Convert to fraction form
    155,587.80/232,863.30 = 136,925.40/x
  3. Step 3: Cross multiply
    155,587.80x = 232,863.30 × 136,925.40
  4. Step 4: Simplify right side
    155,587.80x = 31,884,900,497.82
  5. Step 5: Solve for x
    x = 31,884,900,497.82/155,587.80
  6. Step 6: Final answer
    x = 204,931.88

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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.