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Finding the Fourth Proportional to 74,810.60, 112,062.30 and 60,986.60

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Solution

The fourth proportional to 74,810.60, 112,062.30 and 60,986.60 is: 91,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810.60 : 112,062.30 = 60,986.60 : x
  2. Step 2: Convert to fraction form
    74,810.60/112,062.30 = 60,986.60/x
  3. Step 3: Cross multiply
    74,810.60x = 112,062.30 × 60,986.60
  4. Step 4: Simplify right side
    74,810.60x = 6,834,298,665.18
  5. Step 5: Solve for x
    x = 6,834,298,665.18/74,810.60
  6. Step 6: Final answer
    x = 91,354.68

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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.