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Finding the Fourth Proportional to 123,994.01, 171,113.51 and 92,894.15

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Solution

The fourth proportional to 123,994.01, 171,113.51 and 92,894.15 is: 128,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,994.01 : 171,113.51 = 92,894.15 : x
  2. Step 2: Convert to fraction form
    123,994.01/171,113.51 = 92,894.15/x
  3. Step 3: Cross multiply
    123,994.01x = 171,113.51 × 92,894.15
  4. Step 4: Simplify right side
    123,994.01x = 15,895,443,639.13
  5. Step 5: Solve for x
    x = 15,895,443,639.13/123,994.01
  6. Step 6: Final answer
    x = 128,195.25

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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.