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Finding the Fourth Proportional to 78,950.58, 118,488.72 and 41,532.48

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Solution

The fourth proportional to 78,950.58, 118,488.72 and 41,532.48 is: 62,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,950.58 : 118,488.72 = 41,532.48 : x
  2. Step 2: Convert to fraction form
    78,950.58/118,488.72 = 41,532.48/x
  3. Step 3: Cross multiply
    78,950.58x = 118,488.72 × 41,532.48
  4. Step 4: Simplify right side
    78,950.58x = 4,921,130,393.63
  5. Step 5: Solve for x
    x = 4,921,130,393.63/78,950.58
  6. Step 6: Final answer
    x = 62,331.78

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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.