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Finding the Fourth Proportional to 125,575.93, 188,359.03 and 42,469.93

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Solution

The fourth proportional to 125,575.93, 188,359.03 and 42,469.93 is: 63,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,575.93 : 188,359.03 = 42,469.93 : x
  2. Step 2: Convert to fraction form
    125,575.93/188,359.03 = 42,469.93/x
  3. Step 3: Cross multiply
    125,575.93x = 188,359.03 × 42,469.93
  4. Step 4: Simplify right side
    125,575.93x = 7,999,594,818.97
  5. Step 5: Solve for x
    x = 7,999,594,818.97/125,575.93
  6. Step 6: Final answer
    x = 63,703.25

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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.