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Finding the Fourth Proportional to 91,065.68, 125,596.36 and 76,473.52

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Solution

The fourth proportional to 91,065.68, 125,596.36 and 76,473.52 is: 105,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,065.68 : 125,596.36 = 76,473.52 : x
  2. Step 2: Convert to fraction form
    91,065.68/125,596.36 = 76,473.52/x
  3. Step 3: Cross multiply
    91,065.68x = 125,596.36 × 76,473.52
  4. Step 4: Simplify right side
    91,065.68x = 9,604,795,748.39
  5. Step 5: Solve for x
    x = 9,604,795,748.39/91,065.68
  6. Step 6: Final answer
    x = 105,471.08

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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.