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Finding the Fourth Proportional to 91,754.76, 126,630.90 and 54,041.16

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Solution

The fourth proportional to 91,754.76, 126,630.90 and 54,041.16 is: 74,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,754.76 : 126,630.90 = 54,041.16 : x
  2. Step 2: Convert to fraction form
    91,754.76/126,630.90 = 54,041.16/x
  3. Step 3: Cross multiply
    91,754.76x = 126,630.90 × 54,041.16
  4. Step 4: Simplify right side
    91,754.76x = 6,843,280,727.84
  5. Step 5: Solve for x
    x = 6,843,280,727.84/91,754.76
  6. Step 6: Final answer
    x = 74,582.30

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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.