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Finding the Fourth Proportional to 207,693.52, 286,623 and 115,814.92

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Solution

The fourth proportional to 207,693.52, 286,623 and 115,814.92 is: 159,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,693.52 : 286,623 = 115,814.92 : x
  2. Step 2: Convert to fraction form
    207,693.52/286,623 = 115,814.92/x
  3. Step 3: Cross multiply
    207,693.52x = 286,623 × 115,814.92
  4. Step 4: Simplify right side
    207,693.52x = 33,195,219,815.16
  5. Step 5: Solve for x
    x = 33,195,219,815.16/207,693.52
  6. Step 6: Final answer
    x = 159,827.90

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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.