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Finding the Fourth Proportional to 220,428.61, 304,194.99 and 124,933.25

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Solution

The fourth proportional to 220,428.61, 304,194.99 and 124,933.25 is: 172,409.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,428.61 : 304,194.99 = 124,933.25 : x
  2. Step 2: Convert to fraction form
    220,428.61/304,194.99 = 124,933.25/x
  3. Step 3: Cross multiply
    220,428.61x = 304,194.99 × 124,933.25
  4. Step 4: Simplify right side
    220,428.61x = 38,004,069,963.40
  5. Step 5: Solve for x
    x = 38,004,069,963.40/220,428.61
  6. Step 6: Final answer
    x = 172,409.88

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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.