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Finding the Fourth Proportional to 61,065.58, 84,223.11 and 40,916.02

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Solution

The fourth proportional to 61,065.58, 84,223.11 and 40,916.02 is: 56,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,065.58 : 84,223.11 = 40,916.02 : x
  2. Step 2: Convert to fraction form
    61,065.58/84,223.11 = 40,916.02/x
  3. Step 3: Cross multiply
    61,065.58x = 84,223.11 × 40,916.02
  4. Step 4: Simplify right side
    61,065.58x = 3,446,074,453.22
  5. Step 5: Solve for x
    x = 3,446,074,453.22/61,065.58
  6. Step 6: Final answer
    x = 56,432.35

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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.