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Finding the Fourth Proportional to 91,062.63, 125,731.16 and 75,994.23

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Solution

The fourth proportional to 91,062.63, 125,731.16 and 75,994.23 is: 104,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,062.63 : 125,731.16 = 75,994.23 : x
  2. Step 2: Convert to fraction form
    91,062.63/125,731.16 = 75,994.23/x
  3. Step 3: Cross multiply
    91,062.63x = 125,731.16 × 75,994.23
  4. Step 4: Simplify right side
    91,062.63x = 9,554,842,311.24
  5. Step 5: Solve for x
    x = 9,554,842,311.24/91,062.63
  6. Step 6: Final answer
    x = 104,926.05

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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.