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Finding the Fourth Proportional to 91,803.40, 137,705.10 and 32,705.80

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Solution

The fourth proportional to 91,803.40, 137,705.10 and 32,705.80 is: 49,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,803.40 : 137,705.10 = 32,705.80 : x
  2. Step 2: Convert to fraction form
    91,803.40/137,705.10 = 32,705.80/x
  3. Step 3: Cross multiply
    91,803.40x = 137,705.10 × 32,705.80
  4. Step 4: Simplify right side
    91,803.40x = 4,503,755,459.58
  5. Step 5: Solve for x
    x = 4,503,755,459.58/91,803.40
  6. Step 6: Final answer
    x = 49,058.70

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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.