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Finding the Fourth Proportional to 147,910.60, 222,005.10 and 77,840.20

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Solution

The fourth proportional to 147,910.60, 222,005.10 and 77,840.20 is: 116,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,910.60 : 222,005.10 = 77,840.20 : x
  2. Step 2: Convert to fraction form
    147,910.60/222,005.10 = 77,840.20/x
  3. Step 3: Cross multiply
    147,910.60x = 222,005.10 × 77,840.20
  4. Step 4: Simplify right side
    147,910.60x = 17,280,921,385.02
  5. Step 5: Solve for x
    x = 17,280,921,385.02/147,910.60
  6. Step 6: Final answer
    x = 116,833.56

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1.5x scale

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.