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Finding the Fourth Proportional to 125,053.56, 187,442.73 and 61,780.01

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Solution

The fourth proportional to 125,053.56, 187,442.73 and 61,780.01 is: 92,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,053.56 : 187,442.73 = 61,780.01 : x
  2. Step 2: Convert to fraction form
    125,053.56/187,442.73 = 61,780.01/x
  3. Step 3: Cross multiply
    125,053.56x = 187,442.73 × 61,780.01
  4. Step 4: Simplify right side
    125,053.56x = 11,580,212,796.61
  5. Step 5: Solve for x
    x = 11,580,212,796.61/125,053.56
  6. Step 6: Final answer
    x = 92,602.02

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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.