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Finding the Fourth Proportional to 159,658.64, 220,323.88 and 88,041.68

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Solution

The fourth proportional to 159,658.64, 220,323.88 and 88,041.68 is: 121,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,658.64 : 220,323.88 = 88,041.68 : x
  2. Step 2: Convert to fraction form
    159,658.64/220,323.88 = 88,041.68/x
  3. Step 3: Cross multiply
    159,658.64x = 220,323.88 × 88,041.68
  4. Step 4: Simplify right side
    159,658.64x = 19,397,684,539.32
  5. Step 5: Solve for x
    x = 19,397,684,539.32/159,658.64
  6. Step 6: Final answer
    x = 121,494.74

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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.