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Finding the Fourth Proportional to 127,897.66, 176,500.98 and 70,543.54

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Solution

The fourth proportional to 127,897.66, 176,500.98 and 70,543.54 is: 97,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,897.66 : 176,500.98 = 70,543.54 : x
  2. Step 2: Convert to fraction form
    127,897.66/176,500.98 = 70,543.54/x
  3. Step 3: Cross multiply
    127,897.66x = 176,500.98 × 70,543.54
  4. Step 4: Simplify right side
    127,897.66x = 12,451,003,942.67
  5. Step 5: Solve for x
    x = 12,451,003,942.67/127,897.66
  6. Step 6: Final answer
    x = 97,351.30

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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.