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Finding the Fourth Proportional to 98,764.60, 148,017.30 and 39,551.80

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Solution

The fourth proportional to 98,764.60, 148,017.30 and 39,551.80 is: 59,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,764.60 : 148,017.30 = 39,551.80 : x
  2. Step 2: Convert to fraction form
    98,764.60/148,017.30 = 39,551.80/x
  3. Step 3: Cross multiply
    98,764.60x = 148,017.30 × 39,551.80
  4. Step 4: Simplify right side
    98,764.60x = 5,854,350,646.14
  5. Step 5: Solve for x
    x = 5,854,350,646.14/98,764.60
  6. Step 6: Final answer
    x = 59,275.80

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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.