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Finding the Fourth Proportional to 127,873.76, 176,467.14 and 70,513.25

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Solution

The fourth proportional to 127,873.76, 176,467.14 and 70,513.25 is: 97,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,873.76 : 176,467.14 = 70,513.25 : x
  2. Step 2: Convert to fraction form
    127,873.76/176,467.14 = 70,513.25/x
  3. Step 3: Cross multiply
    127,873.76x = 176,467.14 × 70,513.25
  4. Step 4: Simplify right side
    127,873.76x = 12,443,270,677.27
  5. Step 5: Solve for x
    x = 12,443,270,677.27/127,873.76
  6. Step 6: Final answer
    x = 97,309.03

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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.