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Finding the Fourth Proportional to 127,960.81, 176,587.75 and 70,602.64

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Solution

The fourth proportional to 127,960.81, 176,587.75 and 70,602.64 is: 97,432.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.81 : 176,587.75 = 70,602.64 : x
  2. Step 2: Convert to fraction form
    127,960.81/176,587.75 = 70,602.64/x
  3. Step 3: Cross multiply
    127,960.81x = 176,587.75 × 70,602.64
  4. Step 4: Simplify right side
    127,960.81x = 12,467,560,591.30
  5. Step 5: Solve for x
    x = 12,467,560,591.30/127,960.81
  6. Step 6: Final answer
    x = 97,432.65

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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.