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Finding the Fourth Proportional to 124,446.90, 171,736.29 and 67,858.23

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Solution

The fourth proportional to 124,446.90, 171,736.29 and 67,858.23 is: 93,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,446.90 : 171,736.29 = 67,858.23 : x
  2. Step 2: Convert to fraction form
    124,446.90/171,736.29 = 67,858.23/x
  3. Step 3: Cross multiply
    124,446.90x = 171,736.29 × 67,858.23
  4. Step 4: Simplify right side
    124,446.90x = 11,653,720,666.17
  5. Step 5: Solve for x
    x = 11,653,720,666.17/124,446.90
  6. Step 6: Final answer
    x = 93,644.12

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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.