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Finding the Fourth Proportional to 475,155.92, 712,659.53 and 155,305.35

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Solution

The fourth proportional to 475,155.92, 712,659.53 and 155,305.35 is: 232,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,155.92 : 712,659.53 = 155,305.35 : x
  2. Step 2: Convert to fraction form
    475,155.92/712,659.53 = 155,305.35/x
  3. Step 3: Cross multiply
    475,155.92x = 712,659.53 × 155,305.35
  4. Step 4: Simplify right side
    475,155.92x = 110,679,838,125.75
  5. Step 5: Solve for x
    x = 110,679,838,125.75/475,155.92
  6. Step 6: Final answer
    x = 232,933.72

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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.