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Finding the Fourth Proportional to 127,880.82, 176,471.48 and 70,522.56

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Solution

The fourth proportional to 127,880.82, 176,471.48 and 70,522.56 is: 97,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,880.82 : 176,471.48 = 70,522.56 : x
  2. Step 2: Convert to fraction form
    127,880.82/176,471.48 = 70,522.56/x
  3. Step 3: Cross multiply
    127,880.82x = 176,471.48 × 70,522.56
  4. Step 4: Simplify right side
    127,880.82x = 12,445,220,536.59
  5. Step 5: Solve for x
    x = 12,445,220,536.59/127,880.82
  6. Step 6: Final answer
    x = 97,318.90

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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.