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Finding the Fourth Proportional to 123,937.39, 171,064.70 and 70,254.44

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Solution

The fourth proportional to 123,937.39, 171,064.70 and 70,254.44 is: 96,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,937.39 : 171,064.70 = 70,254.44 : x
  2. Step 2: Convert to fraction form
    123,937.39/171,064.70 = 70,254.44/x
  3. Step 3: Cross multiply
    123,937.39x = 171,064.70 × 70,254.44
  4. Step 4: Simplify right side
    123,937.39x = 12,018,053,759.13
  5. Step 5: Solve for x
    x = 12,018,053,759.13/123,937.39
  6. Step 6: Final answer
    x = 96,968.75

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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.