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Finding the Fourth Proportional to 134,718.32, 185,921.88 and 74,294.48

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Solution

The fourth proportional to 134,718.32, 185,921.88 and 74,294.48 is: 102,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,718.32 : 185,921.88 = 74,294.48 : x
  2. Step 2: Convert to fraction form
    134,718.32/185,921.88 = 74,294.48/x
  3. Step 3: Cross multiply
    134,718.32x = 185,921.88 × 74,294.48
  4. Step 4: Simplify right side
    134,718.32x = 13,812,969,395.22
  5. Step 5: Solve for x
    x = 13,812,969,395.22/134,718.32
  6. Step 6: Final answer
    x = 102,532.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.