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Finding the Fourth Proportional to 220,118.04, 303,764 and 124,643.34

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Solution

The fourth proportional to 220,118.04, 303,764 and 124,643.34 is: 172,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,118.04 : 303,764 = 124,643.34 : x
  2. Step 2: Convert to fraction form
    220,118.04/303,764 = 124,643.34/x
  3. Step 3: Cross multiply
    220,118.04x = 303,764 × 124,643.34
  4. Step 4: Simplify right side
    220,118.04x = 37,862,159,531.76
  5. Step 5: Solve for x
    x = 37,862,159,531.76/220,118.04
  6. Step 6: Final answer
    x = 172,008.43

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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.