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Finding the Fourth Proportional to 66,104.79, 99,058.71 and 36,531.07

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Solution

The fourth proportional to 66,104.79, 99,058.71 and 36,531.07 is: 54,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,104.79 : 99,058.71 = 36,531.07 : x
  2. Step 2: Convert to fraction form
    66,104.79/99,058.71 = 36,531.07/x
  3. Step 3: Cross multiply
    66,104.79x = 99,058.71 × 36,531.07
  4. Step 4: Simplify right side
    66,104.79x = 3,618,720,669.12
  5. Step 5: Solve for x
    x = 3,618,720,669.12/66,104.79
  6. Step 6: Final answer
    x = 54,742.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.