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Finding the Fourth Proportional to 576,056.68, 864,085.12 and 155,332.56

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Solution

The fourth proportional to 576,056.68, 864,085.12 and 155,332.56 is: 232,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,056.68 : 864,085.12 = 155,332.56 : x
  2. Step 2: Convert to fraction form
    576,056.68/864,085.12 = 155,332.56/x
  3. Step 3: Cross multiply
    576,056.68x = 864,085.12 × 155,332.56
  4. Step 4: Simplify right side
    576,056.68x = 134,220,553,747.51
  5. Step 5: Solve for x
    x = 134,220,553,747.51/576,056.68
  6. Step 6: Final answer
    x = 232,998.87

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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.