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Finding the Fourth Proportional to 123,994.76, 171,113.96 and 67,407.36

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Solution

The fourth proportional to 123,994.76, 171,113.96 and 67,407.36 is: 93,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,994.76 : 171,113.96 = 67,407.36 : x
  2. Step 2: Convert to fraction form
    123,994.76/171,113.96 = 67,407.36/x
  3. Step 3: Cross multiply
    123,994.76x = 171,113.96 × 67,407.36
  4. Step 4: Simplify right side
    123,994.76x = 11,534,340,302.75
  5. Step 5: Solve for x
    x = 11,534,340,302.75/123,994.76
  6. Step 6: Final answer
    x = 93,022.80

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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.