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Finding the Fourth Proportional to 125,867.53, 188,775.97 and 61,798.77

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Solution

The fourth proportional to 125,867.53, 188,775.97 and 61,798.77 is: 92,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,867.53 : 188,775.97 = 61,798.77 : x
  2. Step 2: Convert to fraction form
    125,867.53/188,775.97 = 61,798.77/x
  3. Step 3: Cross multiply
    125,867.53x = 188,775.97 × 61,798.77
  4. Step 4: Simplify right side
    125,867.53x = 11,666,122,751.56
  5. Step 5: Solve for x
    x = 11,666,122,751.56/125,867.53
  6. Step 6: Final answer
    x = 92,685.72

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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.