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Finding the Fourth Proportional to 113,518.08, 156,654.97 and 65,799.11

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Solution

The fourth proportional to 113,518.08, 156,654.97 and 65,799.11 is: 90,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,518.08 : 156,654.97 = 65,799.11 : x
  2. Step 2: Convert to fraction form
    113,518.08/156,654.97 = 65,799.11/x
  3. Step 3: Cross multiply
    113,518.08x = 156,654.97 × 65,799.11
  4. Step 4: Simplify right side
    113,518.08x = 10,307,757,830.22
  5. Step 5: Solve for x
    x = 10,307,757,830.22/113,518.08
  6. Step 6: Final answer
    x = 90,802.79

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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.