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Finding the Fourth Proportional to 61,735.68, 92,545.20 and 56,078.64

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Solution

The fourth proportional to 61,735.68, 92,545.20 and 56,078.64 is: 84,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,735.68 : 92,545.20 = 56,078.64 : x
  2. Step 2: Convert to fraction form
    61,735.68/92,545.20 = 56,078.64/x
  3. Step 3: Cross multiply
    61,735.68x = 92,545.20 × 56,078.64
  4. Step 4: Simplify right side
    61,735.68x = 5,189,808,954.53
  5. Step 5: Solve for x
    x = 5,189,808,954.53/61,735.68
  6. Step 6: Final answer
    x = 84,064.98

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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.