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Finding the Fourth Proportional to 220,326.57, 304,055.16 and 119,731.05

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Solution

The fourth proportional to 220,326.57, 304,055.16 and 119,731.05 is: 165,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,326.57 : 304,055.16 = 119,731.05 : x
  2. Step 2: Convert to fraction form
    220,326.57/304,055.16 = 119,731.05/x
  3. Step 3: Cross multiply
    220,326.57x = 304,055.16 × 119,731.05
  4. Step 4: Simplify right side
    220,326.57x = 36,404,841,445.79
  5. Step 5: Solve for x
    x = 36,404,841,445.79/220,326.57
  6. Step 6: Final answer
    x = 165,231.28

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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.