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Finding the Fourth Proportional to 123,962.64, 171,061.50 and 67,373.64

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Solution

The fourth proportional to 123,962.64, 171,061.50 and 67,373.64 is: 92,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,962.64 : 171,061.50 = 67,373.64 : x
  2. Step 2: Convert to fraction form
    123,962.64/171,061.50 = 67,373.64/x
  3. Step 3: Cross multiply
    123,962.64x = 171,061.50 × 67,373.64
  4. Step 4: Simplify right side
    123,962.64x = 11,525,035,918.86
  5. Step 5: Solve for x
    x = 11,525,035,918.86/123,962.64
  6. Step 6: Final answer
    x = 92,971.85

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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.