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Finding the Fourth Proportional to 220,634.08, 304,474.08 and 120,034.24

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Solution

The fourth proportional to 220,634.08, 304,474.08 and 120,034.24 is: 165,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,634.08 : 304,474.08 = 120,034.24 : x
  2. Step 2: Convert to fraction form
    220,634.08/304,474.08 = 120,034.24/x
  3. Step 3: Cross multiply
    220,634.08x = 304,474.08 × 120,034.24
  4. Step 4: Simplify right side
    220,634.08x = 36,547,314,792.50
  5. Step 5: Solve for x
    x = 36,547,314,792.50/220,634.08
  6. Step 6: Final answer
    x = 165,646.73

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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.