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Finding the Fourth Proportional to 113,149.68, 169,783.42 and 45,698.38

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Solution

The fourth proportional to 113,149.68, 169,783.42 and 45,698.38 is: 68,571.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,149.68 : 169,783.42 = 45,698.38 : x
  2. Step 2: Convert to fraction form
    113,149.68/169,783.42 = 45,698.38/x
  3. Step 3: Cross multiply
    113,149.68x = 169,783.42 × 45,698.38
  4. Step 4: Simplify right side
    113,149.68x = 7,758,827,244.86
  5. Step 5: Solve for x
    x = 7,758,827,244.86/113,149.68
  6. Step 6: Final answer
    x = 68,571.36

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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.