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Finding the Fourth Proportional to 91,860.84, 137,572.56 and 63,808.92

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Solution

The fourth proportional to 91,860.84, 137,572.56 and 63,808.92 is: 95,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,860.84 : 137,572.56 = 63,808.92 : x
  2. Step 2: Convert to fraction form
    91,860.84/137,572.56 = 63,808.92/x
  3. Step 3: Cross multiply
    91,860.84x = 137,572.56 × 63,808.92
  4. Step 4: Simplify right side
    91,860.84x = 8,778,356,475.24
  5. Step 5: Solve for x
    x = 8,778,356,475.24/91,860.84
  6. Step 6: Final answer
    x = 95,561.47

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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.