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Finding the Fourth Proportional to 127,060.92, 190,560.48 and 42,799.32

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Solution

The fourth proportional to 127,060.92, 190,560.48 and 42,799.32 is: 64,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,060.92 : 190,560.48 = 42,799.32 : x
  2. Step 2: Convert to fraction form
    127,060.92/190,560.48 = 42,799.32/x
  3. Step 3: Cross multiply
    127,060.92x = 190,560.48 × 42,799.32
  4. Step 4: Simplify right side
    127,060.92x = 8,155,858,962.87
  5. Step 5: Solve for x
    x = 8,155,858,962.87/127,060.92
  6. Step 6: Final answer
    x = 64,188.57

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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.