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Finding the Fourth Proportional to 291,616.86, 437,425.22 and 70,000.86

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Solution

The fourth proportional to 291,616.86, 437,425.22 and 70,000.86 is: 105,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,616.86 : 437,425.22 = 70,000.86 : x
  2. Step 2: Convert to fraction form
    291,616.86/437,425.22 = 70,000.86/x
  3. Step 3: Cross multiply
    291,616.86x = 437,425.22 × 70,000.86
  4. Step 4: Simplify right side
    291,616.86x = 30,620,141,585.69
  5. Step 5: Solve for x
    x = 30,620,141,585.69/291,616.86
  6. Step 6: Final answer
    x = 105,001.27

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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.