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Finding the Fourth Proportional to 127,063.60, 175,352.52 and 69,699.40

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Solution

The fourth proportional to 127,063.60, 175,352.52 and 69,699.40 is: 96,187.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,063.60 : 175,352.52 = 69,699.40 : x
  2. Step 2: Convert to fraction form
    127,063.60/175,352.52 = 69,699.40/x
  3. Step 3: Cross multiply
    127,063.60x = 175,352.52 × 69,699.40
  4. Step 4: Simplify right side
    127,063.60x = 12,221,965,432.49
  5. Step 5: Solve for x
    x = 12,221,965,432.49/127,063.60
  6. Step 6: Final answer
    x = 96,187.78

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1.5x scale

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.