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Finding the Fourth Proportional to 126,607.86, 174,711.78 and 69,235.74

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Solution

The fourth proportional to 126,607.86, 174,711.78 and 69,235.74 is: 95,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,607.86 : 174,711.78 = 69,235.74 : x
  2. Step 2: Convert to fraction form
    126,607.86/174,711.78 = 69,235.74/x
  3. Step 3: Cross multiply
    126,607.86x = 174,711.78 × 69,235.74
  4. Step 4: Simplify right side
    126,607.86x = 12,096,299,375.02
  5. Step 5: Solve for x
    x = 12,096,299,375.02/126,607.86
  6. Step 6: Final answer
    x = 95,541.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.