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Finding the Fourth Proportional to 335,816.40, 503,724.60 and 99,158.70

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Solution

The fourth proportional to 335,816.40, 503,724.60 and 99,158.70 is: 148,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,816.40 : 503,724.60 = 99,158.70 : x
  2. Step 2: Convert to fraction form
    335,816.40/503,724.60 = 99,158.70/x
  3. Step 3: Cross multiply
    335,816.40x = 503,724.60 × 99,158.70
  4. Step 4: Simplify right side
    335,816.40x = 49,948,676,494.02
  5. Step 5: Solve for x
    x = 49,948,676,494.02/335,816.40
  6. Step 6: Final answer
    x = 148,738.05

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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.