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Finding the Fourth Proportional to 159,714.83, 220,412.97 and 88,099.40

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Solution

The fourth proportional to 159,714.83, 220,412.97 and 88,099.40 is: 121,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,714.83 : 220,412.97 = 88,099.40 : x
  2. Step 2: Convert to fraction form
    159,714.83/220,412.97 = 88,099.40/x
  3. Step 3: Cross multiply
    159,714.83x = 220,412.97 × 88,099.40
  4. Step 4: Simplify right side
    159,714.83x = 19,418,249,307.15
  5. Step 5: Solve for x
    x = 19,418,249,307.15/159,714.83
  6. Step 6: Final answer
    x = 121,580.76

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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.