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Finding the Fourth Proportional to 127,301.60, 190,956.16 and 60,748.80

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Solution

The fourth proportional to 127,301.60, 190,956.16 and 60,748.80 is: 91,124.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,301.60 : 190,956.16 = 60,748.80 : x
  2. Step 2: Convert to fraction form
    127,301.60/190,956.16 = 60,748.80/x
  3. Step 3: Cross multiply
    127,301.60x = 190,956.16 × 60,748.80
  4. Step 4: Simplify right side
    127,301.60x = 11,600,357,572.61
  5. Step 5: Solve for x
    x = 11,600,357,572.61/127,301.60
  6. Step 6: Final answer
    x = 91,124.99

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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.