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Finding the Fourth Proportional to 211,193.73, 316,788.17 and 84,866.13

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Solution

The fourth proportional to 211,193.73, 316,788.17 and 84,866.13 is: 127,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,193.73 : 316,788.17 = 84,866.13 : x
  2. Step 2: Convert to fraction form
    211,193.73/316,788.17 = 84,866.13/x
  3. Step 3: Cross multiply
    211,193.73x = 316,788.17 × 84,866.13
  4. Step 4: Simplify right side
    211,193.73x = 26,884,585,593.35
  5. Step 5: Solve for x
    x = 26,884,585,593.35/211,193.73
  6. Step 6: Final answer
    x = 127,298.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.