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Finding the Fourth Proportional to 71,458.52, 98,590.04 and 41,239.84

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Solution

The fourth proportional to 71,458.52, 98,590.04 and 41,239.84 is: 56,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,458.52 : 98,590.04 = 41,239.84 : x
  2. Step 2: Convert to fraction form
    71,458.52/98,590.04 = 41,239.84/x
  3. Step 3: Cross multiply
    71,458.52x = 98,590.04 × 41,239.84
  4. Step 4: Simplify right side
    71,458.52x = 4,065,837,475.19
  5. Step 5: Solve for x
    x = 4,065,837,475.19/71,458.52
  6. Step 6: Final answer
    x = 56,897.87

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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.