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Finding the Fourth Proportional to 127,168.48, 175,486.24 and 69,806.40

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Solution

The fourth proportional to 127,168.48, 175,486.24 and 69,806.40 is: 96,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,168.48 : 175,486.24 = 69,806.40 : x
  2. Step 2: Convert to fraction form
    127,168.48/175,486.24 = 69,806.40/x
  3. Step 3: Cross multiply
    127,168.48x = 175,486.24 × 69,806.40
  4. Step 4: Simplify right side
    127,168.48x = 12,250,062,663.94
  5. Step 5: Solve for x
    x = 12,250,062,663.94/127,168.48
  6. Step 6: Final answer
    x = 96,329.39

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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.