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Finding the Fourth Proportional to 115,374, 173,079.29 and 48,814.63

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Solution

The fourth proportional to 115,374, 173,079.29 and 48,814.63 is: 73,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374 : 173,079.29 = 48,814.63 : x
  2. Step 2: Convert to fraction form
    115,374/173,079.29 = 48,814.63/x
  3. Step 3: Cross multiply
    115,374x = 173,079.29 × 48,814.63
  4. Step 4: Simplify right side
    115,374x = 8,448,801,502.01
  5. Step 5: Solve for x
    x = 8,448,801,502.01/115,374
  6. Step 6: Final answer
    x = 73,229.68

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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.