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Finding the Fourth Proportional to 127,285.62, 175,649.22 and 70,700.64

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Solution

The fourth proportional to 127,285.62, 175,649.22 and 70,700.64 is: 97,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,285.62 : 175,649.22 = 70,700.64 : x
  2. Step 2: Convert to fraction form
    127,285.62/175,649.22 = 70,700.64/x
  3. Step 3: Cross multiply
    127,285.62x = 175,649.22 × 70,700.64
  4. Step 4: Simplify right side
    127,285.62x = 12,418,512,269.50
  5. Step 5: Solve for x
    x = 12,418,512,269.50/127,285.62
  6. Step 6: Final answer
    x = 97,564.14

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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.