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Finding the Fourth Proportional to 228,061.76, 314,711.67 and 126,081.11

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Solution

The fourth proportional to 228,061.76, 314,711.67 and 126,081.11 is: 173,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,061.76 : 314,711.67 = 126,081.11 : x
  2. Step 2: Convert to fraction form
    228,061.76/314,711.67 = 126,081.11/x
  3. Step 3: Cross multiply
    228,061.76x = 314,711.67 × 126,081.11
  4. Step 4: Simplify right side
    228,061.76x = 39,679,196,683.55
  5. Step 5: Solve for x
    x = 39,679,196,683.55/228,061.76
  6. Step 6: Final answer
    x = 173,984.44

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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.