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Finding the Fourth Proportional to 125,762.78, 173,548.98 and 69,174.14

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Solution

The fourth proportional to 125,762.78, 173,548.98 and 69,174.14 is: 95,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,762.78 : 173,548.98 = 69,174.14 : x
  2. Step 2: Convert to fraction form
    125,762.78/173,548.98 = 69,174.14/x
  3. Step 3: Cross multiply
    125,762.78x = 173,548.98 × 69,174.14
  4. Step 4: Simplify right side
    125,762.78x = 12,005,101,439.38
  5. Step 5: Solve for x
    x = 12,005,101,439.38/125,762.78
  6. Step 6: Final answer
    x = 95,458.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.