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Finding the Fourth Proportional to 90,713.90, 136,071.12 and 27,534.54

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Solution

The fourth proportional to 90,713.90, 136,071.12 and 27,534.54 is: 41,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,713.90 : 136,071.12 = 27,534.54 : x
  2. Step 2: Convert to fraction form
    90,713.90/136,071.12 = 27,534.54/x
  3. Step 3: Cross multiply
    90,713.90x = 136,071.12 × 27,534.54
  4. Step 4: Simplify right side
    90,713.90x = 3,746,655,696.48
  5. Step 5: Solve for x
    x = 3,746,655,696.48/90,713.90
  6. Step 6: Final answer
    x = 41,301.89

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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.