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Finding the Fourth Proportional to 124,849, 172,291.68 and 68,260.84

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Solution

The fourth proportional to 124,849, 172,291.68 and 68,260.84 is: 94,199.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,849 : 172,291.68 = 68,260.84 : x
  2. Step 2: Convert to fraction form
    124,849/172,291.68 = 68,260.84/x
  3. Step 3: Cross multiply
    124,849x = 172,291.68 × 68,260.84
  4. Step 4: Simplify right side
    124,849x = 11,760,774,801.81
  5. Step 5: Solve for x
    x = 11,760,774,801.81/124,849
  6. Step 6: Final answer
    x = 94,199.99

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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.