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Finding the Fourth Proportional to 125,576.93, 188,360.53 and 42,470.93

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Solution

The fourth proportional to 125,576.93, 188,360.53 and 42,470.93 is: 63,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,576.93 : 188,360.53 = 42,470.93 : x
  2. Step 2: Convert to fraction form
    125,576.93/188,360.53 = 42,470.93/x
  3. Step 3: Cross multiply
    125,576.93x = 188,360.53 × 42,470.93
  4. Step 4: Simplify right side
    125,576.93x = 7,999,846,884.39
  5. Step 5: Solve for x
    x = 7,999,846,884.39/125,576.93
  6. Step 6: Final answer
    x = 63,704.75

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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.