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Finding the Fourth Proportional to 99,081.80, 148,640.70 and 32,503.40

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Solution

The fourth proportional to 99,081.80, 148,640.70 and 32,503.40 is: 48,761.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,081.80 : 148,640.70 = 32,503.40 : x
  2. Step 2: Convert to fraction form
    99,081.80/148,640.70 = 32,503.40/x
  3. Step 3: Cross multiply
    99,081.80x = 148,640.70 × 32,503.40
  4. Step 4: Simplify right side
    99,081.80x = 4,831,328,128.38
  5. Step 5: Solve for x
    x = 4,831,328,128.38/99,081.80
  6. Step 6: Final answer
    x = 48,761.00

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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.