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Finding the Fourth Proportional to 220,458.96, 304,239.78 and 124,962.48

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Solution

The fourth proportional to 220,458.96, 304,239.78 and 124,962.48 is: 172,451.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,458.96 : 304,239.78 = 124,962.48 : x
  2. Step 2: Convert to fraction form
    220,458.96/304,239.78 = 124,962.48/x
  3. Step 3: Cross multiply
    220,458.96x = 304,239.78 × 124,962.48
  4. Step 4: Simplify right side
    220,458.96x = 38,018,557,423.45
  5. Step 5: Solve for x
    x = 38,018,557,423.45/220,458.96
  6. Step 6: Final answer
    x = 172,451.86

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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.