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Finding the Fourth Proportional to 127,281.25, 175,648.13 and 70,697.89

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Solution

The fourth proportional to 127,281.25, 175,648.13 and 70,697.89 is: 97,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281.25 : 175,648.13 = 70,697.89 : x
  2. Step 2: Convert to fraction form
    127,281.25/175,648.13 = 70,697.89/x
  3. Step 3: Cross multiply
    127,281.25x = 175,648.13 × 70,697.89
  4. Step 4: Simplify right side
    127,281.25x = 12,417,952,173.45
  5. Step 5: Solve for x
    x = 12,417,952,173.45/127,281.25
  6. Step 6: Final answer
    x = 97,563.09

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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.