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Finding the Fourth Proportional to 159,795.98, 220,519.72 and 88,178.58

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Solution

The fourth proportional to 159,795.98, 220,519.72 and 88,178.58 is: 121,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,795.98 : 220,519.72 = 88,178.58 : x
  2. Step 2: Convert to fraction form
    159,795.98/220,519.72 = 88,178.58/x
  3. Step 3: Cross multiply
    159,795.98x = 220,519.72 × 88,178.58
  4. Step 4: Simplify right side
    159,795.98x = 19,445,115,771.60
  5. Step 5: Solve for x
    x = 19,445,115,771.60/159,795.98
  6. Step 6: Final answer
    x = 121,687.14

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1.5x scale

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.