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Finding the Fourth Proportional to 116,841.12, 161,240.64 and 63,849.12

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Solution

The fourth proportional to 116,841.12, 161,240.64 and 63,849.12 is: 88,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,841.12 : 161,240.64 = 63,849.12 : x
  2. Step 2: Convert to fraction form
    116,841.12/161,240.64 = 63,849.12/x
  3. Step 3: Cross multiply
    116,841.12x = 161,240.64 × 63,849.12
  4. Step 4: Simplify right side
    116,841.12x = 10,295,072,972.24
  5. Step 5: Solve for x
    x = 10,295,072,972.24/116,841.12
  6. Step 6: Final answer
    x = 88,111.73

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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.