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Finding the Fourth Proportional to 63,458.40, 87,395.04 and 62,080.86

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Solution

The fourth proportional to 63,458.40, 87,395.04 and 62,080.86 is: 85,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,458.40 : 87,395.04 = 62,080.86 : x
  2. Step 2: Convert to fraction form
    63,458.40/87,395.04 = 62,080.86/x
  3. Step 3: Cross multiply
    63,458.40x = 87,395.04 × 62,080.86
  4. Step 4: Simplify right side
    63,458.40x = 5,425,559,242.93
  5. Step 5: Solve for x
    x = 5,425,559,242.93/63,458.40
  6. Step 6: Final answer
    x = 85,497.89

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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.