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Finding the Fourth Proportional to 99,807.80, 149,711.70 and 93,902.90

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Solution

The fourth proportional to 99,807.80, 149,711.70 and 93,902.90 is: 140,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,807.80 : 149,711.70 = 93,902.90 : x
  2. Step 2: Convert to fraction form
    99,807.80/149,711.70 = 93,902.90/x
  3. Step 3: Cross multiply
    99,807.80x = 149,711.70 × 93,902.90
  4. Step 4: Simplify right side
    99,807.80x = 14,058,362,793.93
  5. Step 5: Solve for x
    x = 14,058,362,793.93/99,807.80
  6. Step 6: Final answer
    x = 140,854.35

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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.