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Finding the Fourth Proportional to 124,741, 172,146.23 and 68,156.02

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Solution

The fourth proportional to 124,741, 172,146.23 and 68,156.02 is: 94,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,741 : 172,146.23 = 68,156.02 : x
  2. Step 2: Convert to fraction form
    124,741/172,146.23 = 68,156.02/x
  3. Step 3: Cross multiply
    124,741x = 172,146.23 × 68,156.02
  4. Step 4: Simplify right side
    124,741x = 11,732,801,894.80
  5. Step 5: Solve for x
    x = 11,732,801,894.80/124,741
  6. Step 6: Final answer
    x = 94,057.30

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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.