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Finding the Fourth Proportional to 291,727.70, 437,591.55 and 70,111.70

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Solution

The fourth proportional to 291,727.70, 437,591.55 and 70,111.70 is: 105,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,727.70 : 437,591.55 = 70,111.70 : x
  2. Step 2: Convert to fraction form
    291,727.70/437,591.55 = 70,111.70/x
  3. Step 3: Cross multiply
    291,727.70x = 437,591.55 × 70,111.70
  4. Step 4: Simplify right side
    291,727.70x = 30,680,287,476.14
  5. Step 5: Solve for x
    x = 30,680,287,476.14/291,727.70
  6. Step 6: Final answer
    x = 105,167.55

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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.