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Finding the Fourth Proportional to 220,583.70, 304,405.68 and 125,090.76

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Solution

The fourth proportional to 220,583.70, 304,405.68 and 125,090.76 is: 172,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,583.70 : 304,405.68 = 125,090.76 : x
  2. Step 2: Convert to fraction form
    220,583.70/304,405.68 = 125,090.76/x
  3. Step 3: Cross multiply
    220,583.70x = 304,405.68 × 125,090.76
  4. Step 4: Simplify right side
    220,583.70x = 38,078,337,859.52
  5. Step 5: Solve for x
    x = 38,078,337,859.52/220,583.70
  6. Step 6: Final answer
    x = 172,625.35

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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.