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Finding the Fourth Proportional to 159,534.87, 220,159.58 and 87,917.46

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Solution

The fourth proportional to 159,534.87, 220,159.58 and 87,917.46 is: 121,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.87 : 220,159.58 = 87,917.46 : x
  2. Step 2: Convert to fraction form
    159,534.87/220,159.58 = 87,917.46/x
  3. Step 3: Cross multiply
    159,534.87x = 220,159.58 × 87,917.46
  4. Step 4: Simplify right side
    159,534.87x = 19,355,871,068.27
  5. Step 5: Solve for x
    x = 19,355,871,068.27/159,534.87
  6. Step 6: Final answer
    x = 121,326.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.