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Finding the Fourth Proportional to 177,619.68, 266,534.60 and 65,378.72

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Solution

The fourth proportional to 177,619.68, 266,534.60 and 65,378.72 is: 98,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,619.68 : 266,534.60 = 65,378.72 : x
  2. Step 2: Convert to fraction form
    177,619.68/266,534.60 = 65,378.72/x
  3. Step 3: Cross multiply
    177,619.68x = 266,534.60 × 65,378.72
  4. Step 4: Simplify right side
    177,619.68x = 17,425,690,983.71
  5. Step 5: Solve for x
    x = 17,425,690,983.71/177,619.68
  6. Step 6: Final answer
    x = 98,106.76

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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.