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Finding the Fourth Proportional to 581,213.16, 871,818.51 and 160,487.82

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Solution

The fourth proportional to 581,213.16, 871,818.51 and 160,487.82 is: 240,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,213.16 : 871,818.51 = 160,487.82 : x
  2. Step 2: Convert to fraction form
    581,213.16/871,818.51 = 160,487.82/x
  3. Step 3: Cross multiply
    581,213.16x = 871,818.51 × 160,487.82
  4. Step 4: Simplify right side
    581,213.16x = 139,916,252,105.55
  5. Step 5: Solve for x
    x = 139,916,252,105.55/581,213.16
  6. Step 6: Final answer
    x = 240,731.39

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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.