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Finding the Fourth Proportional to 133,066.70, 199,624.35 and 54,188.90

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Solution

The fourth proportional to 133,066.70, 199,624.35 and 54,188.90 is: 81,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,066.70 : 199,624.35 = 54,188.90 : x
  2. Step 2: Convert to fraction form
    133,066.70/199,624.35 = 54,188.90/x
  3. Step 3: Cross multiply
    133,066.70x = 199,624.35 × 54,188.90
  4. Step 4: Simplify right side
    133,066.70x = 10,817,423,939.72
  5. Step 5: Solve for x
    x = 10,817,423,939.72/133,066.70
  6. Step 6: Final answer
    x = 81,293.25

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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.