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Finding the Fourth Proportional to 161,607.87, 242,393.28 and 61,765.85

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Solution

The fourth proportional to 161,607.87, 242,393.28 and 61,765.85 is: 92,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,607.87 : 242,393.28 = 61,765.85 : x
  2. Step 2: Convert to fraction form
    161,607.87/242,393.28 = 61,765.85/x
  3. Step 3: Cross multiply
    161,607.87x = 242,393.28 × 61,765.85
  4. Step 4: Simplify right side
    161,607.87x = 14,971,627,347.85
  5. Step 5: Solve for x
    x = 14,971,627,347.85/161,607.87
  6. Step 6: Final answer
    x = 92,641.70

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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.