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Finding the Fourth Proportional to 81,253.00, 112,159.29 and 61,168.14

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Solution

The fourth proportional to 81,253.00, 112,159.29 and 61,168.14 is: 84,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253.00 : 112,159.29 = 61,168.14 : x
  2. Step 2: Convert to fraction form
    81,253.00/112,159.29 = 61,168.14/x
  3. Step 3: Cross multiply
    81,253.00x = 112,159.29 × 61,168.14
  4. Step 4: Simplify right side
    81,253.00x = 6,860,574,286.38
  5. Step 5: Solve for x
    x = 6,860,574,286.38/81,253.00
  6. Step 6: Final answer
    x = 84,434.72

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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.