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Finding the Fourth Proportional to 61,862.86, 85,440.36 and 41,802.58

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Solution

The fourth proportional to 61,862.86, 85,440.36 and 41,802.58 is: 57,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,862.86 : 85,440.36 = 41,802.58 : x
  2. Step 2: Convert to fraction form
    61,862.86/85,440.36 = 41,802.58/x
  3. Step 3: Cross multiply
    61,862.86x = 85,440.36 × 41,802.58
  4. Step 4: Simplify right side
    61,862.86x = 3,571,627,484.13
  5. Step 5: Solve for x
    x = 3,571,627,484.13/61,862.86
  6. Step 6: Final answer
    x = 57,734.60

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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.