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Finding the Fourth Proportional to 293,071.20, 404,452.80 and 172,219.20

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Solution

The fourth proportional to 293,071.20, 404,452.80 and 172,219.20 is: 237,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,071.20 : 404,452.80 = 172,219.20 : x
  2. Step 2: Convert to fraction form
    293,071.20/404,452.80 = 172,219.20/x
  3. Step 3: Cross multiply
    293,071.20x = 404,452.80 × 172,219.20
  4. Step 4: Simplify right side
    293,071.20x = 69,654,537,653.76
  5. Step 5: Solve for x
    x = 69,654,537,653.76/293,071.20
  6. Step 6: Final answer
    x = 237,671.04

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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.