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Finding the Fourth Proportional to 40,666.70, 61,000.05 and 40,277.90

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Solution

The fourth proportional to 40,666.70, 61,000.05 and 40,277.90 is: 60,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,666.70 : 61,000.05 = 40,277.90 : x
  2. Step 2: Convert to fraction form
    40,666.70/61,000.05 = 40,277.90/x
  3. Step 3: Cross multiply
    40,666.70x = 61,000.05 × 40,277.90
  4. Step 4: Simplify right side
    40,666.70x = 2,456,953,913.90
  5. Step 5: Solve for x
    x = 2,456,953,913.90/40,666.70
  6. Step 6: Final answer
    x = 60,416.85

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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.