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Finding the Fourth Proportional to 127,803.78, 176,379.34 and 70,453.28

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Solution

The fourth proportional to 127,803.78, 176,379.34 and 70,453.28 is: 97,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,803.78 : 176,379.34 = 70,453.28 : x
  2. Step 2: Convert to fraction form
    127,803.78/176,379.34 = 70,453.28/x
  3. Step 3: Cross multiply
    127,803.78x = 176,379.34 × 70,453.28
  4. Step 4: Simplify right side
    127,803.78x = 12,426,503,027.24
  5. Step 5: Solve for x
    x = 12,426,503,027.24/127,803.78
  6. Step 6: Final answer
    x = 97,231.11

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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.