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Finding the Fourth Proportional to 71,088.93, 98,101.94 and 39,257.19

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Solution

The fourth proportional to 71,088.93, 98,101.94 and 39,257.19 is: 54,174.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,088.93 : 98,101.94 = 39,257.19 : x
  2. Step 2: Convert to fraction form
    71,088.93/98,101.94 = 39,257.19/x
  3. Step 3: Cross multiply
    71,088.93x = 98,101.94 × 39,257.19
  4. Step 4: Simplify right side
    71,088.93x = 3,851,206,301.66
  5. Step 5: Solve for x
    x = 3,851,206,301.66/71,088.93
  6. Step 6: Final answer
    x = 54,174.49

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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.