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Finding the Fourth Proportional to 61,425.68, 92,026.74 and 42,666.08

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Solution

The fourth proportional to 61,425.68, 92,026.74 and 42,666.08 is: 63,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,425.68 : 92,026.74 = 42,666.08 : x
  2. Step 2: Convert to fraction form
    61,425.68/92,026.74 = 42,666.08/x
  3. Step 3: Cross multiply
    61,425.68x = 92,026.74 × 42,666.08
  4. Step 4: Simplify right side
    61,425.68x = 3,926,420,250.98
  5. Step 5: Solve for x
    x = 3,926,420,250.98/61,425.68
  6. Step 6: Final answer
    x = 63,921.48

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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.