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Finding the Fourth Proportional to 215,066.59, 322,724.36 and 88,683.28

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Solution

The fourth proportional to 215,066.59, 322,724.36 and 88,683.28 is: 133,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,066.59 : 322,724.36 = 88,683.28 : x
  2. Step 2: Convert to fraction form
    215,066.59/322,724.36 = 88,683.28/x
  3. Step 3: Cross multiply
    215,066.59x = 322,724.36 × 88,683.28
  4. Step 4: Simplify right side
    215,066.59x = 28,620,254,780.70
  5. Step 5: Solve for x
    x = 28,620,254,780.70/215,066.59
  6. Step 6: Final answer
    x = 133,076.25

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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.