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Finding the Fourth Proportional to 220,463.76, 304,250.40 and 124,972.32

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Solution

The fourth proportional to 220,463.76, 304,250.40 and 124,972.32 is: 172,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,463.76 : 304,250.40 = 124,972.32 : x
  2. Step 2: Convert to fraction form
    220,463.76/304,250.40 = 124,972.32/x
  3. Step 3: Cross multiply
    220,463.76x = 304,250.40 × 124,972.32
  4. Step 4: Simplify right side
    220,463.76x = 38,022,878,348.93
  5. Step 5: Solve for x
    x = 38,022,878,348.93/220,463.76
  6. Step 6: Final answer
    x = 172,467.70

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1.5x scale

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.