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Finding the Fourth Proportional to 127,471.66, 175,911.03 and 70,881.82

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Solution

The fourth proportional to 127,471.66, 175,911.03 and 70,881.82 is: 97,816.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,471.66 : 175,911.03 = 70,881.82 : x
  2. Step 2: Convert to fraction form
    127,471.66/175,911.03 = 70,881.82/x
  3. Step 3: Cross multiply
    127,471.66x = 175,911.03 × 70,881.82
  4. Step 4: Simplify right side
    127,471.66x = 12,468,893,964.47
  5. Step 5: Solve for x
    x = 12,468,893,964.47/127,471.66
  6. Step 6: Final answer
    x = 97,816.99

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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.