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Finding the Fourth Proportional to 127,970.81, 191,956.22 and 65,601.53

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Solution

The fourth proportional to 127,970.81, 191,956.22 and 65,601.53 is: 98,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,970.81 : 191,956.22 = 65,601.53 : x
  2. Step 2: Convert to fraction form
    127,970.81/191,956.22 = 65,601.53/x
  3. Step 3: Cross multiply
    127,970.81x = 191,956.22 × 65,601.53
  4. Step 4: Simplify right side
    127,970.81x = 12,592,621,397.01
  5. Step 5: Solve for x
    x = 12,592,621,397.01/127,970.81
  6. Step 6: Final answer
    x = 98,402.30

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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.