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Finding the Fourth Proportional to 127,168.98, 175,486.93 and 69,806.90

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Solution

The fourth proportional to 127,168.98, 175,486.93 and 69,806.90 is: 96,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,168.98 : 175,486.93 = 69,806.90 : x
  2. Step 2: Convert to fraction form
    127,168.98/175,486.93 = 69,806.90/x
  3. Step 3: Cross multiply
    127,168.98x = 175,486.93 × 69,806.90
  4. Step 4: Simplify right side
    127,168.98x = 12,250,198,573.82
  5. Step 5: Solve for x
    x = 12,250,198,573.82/127,168.98
  6. Step 6: Final answer
    x = 96,330.08

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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.