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Finding the Fourth Proportional to 220,963.04, 304,931.08 and 125,471.74

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Solution

The fourth proportional to 220,963.04, 304,931.08 and 125,471.74 is: 173,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,963.04 : 304,931.08 = 125,471.74 : x
  2. Step 2: Convert to fraction form
    220,963.04/304,931.08 = 125,471.74/x
  3. Step 3: Cross multiply
    220,963.04x = 304,931.08 × 125,471.74
  4. Step 4: Simplify right side
    220,963.04x = 38,260,233,187.68
  5. Step 5: Solve for x
    x = 38,260,233,187.68/220,963.04
  6. Step 6: Final answer
    x = 173,152.19

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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.