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Finding the Fourth Proportional to 220,763.53, 304,645.21 and 125,264.53

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Solution

The fourth proportional to 220,763.53, 304,645.21 and 125,264.53 is: 172,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,763.53 : 304,645.21 = 125,264.53 : x
  2. Step 2: Convert to fraction form
    220,763.53/304,645.21 = 125,264.53/x
  3. Step 3: Cross multiply
    220,763.53x = 304,645.21 × 125,264.53
  4. Step 4: Simplify right side
    220,763.53x = 38,161,239,047.40
  5. Step 5: Solve for x
    x = 38,161,239,047.40/220,763.53
  6. Step 6: Final answer
    x = 172,860.25

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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.