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Finding the Fourth Proportional to 577,691.16, 866,554.50 and 156,975.96

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Solution

The fourth proportional to 577,691.16, 866,554.50 and 156,975.96 is: 235,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,691.16 : 866,554.50 = 156,975.96 : x
  2. Step 2: Convert to fraction form
    577,691.16/866,554.50 = 156,975.96/x
  3. Step 3: Cross multiply
    577,691.16x = 866,554.50 × 156,975.96
  4. Step 4: Simplify right side
    577,691.16x = 136,028,224,529.82
  5. Step 5: Solve for x
    x = 136,028,224,529.82/577,691.16
  6. Step 6: Final answer
    x = 235,468.77

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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.