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Finding the Fourth Proportional to 61,365.12, 92,221.02 and 36,409.86

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Solution

The fourth proportional to 61,365.12, 92,221.02 and 36,409.86 is: 54,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.12 : 92,221.02 = 36,409.86 : x
  2. Step 2: Convert to fraction form
    61,365.12/92,221.02 = 36,409.86/x
  3. Step 3: Cross multiply
    61,365.12x = 92,221.02 × 36,409.86
  4. Step 4: Simplify right side
    61,365.12x = 3,357,754,427.26
  5. Step 5: Solve for x
    x = 3,357,754,427.26/61,365.12
  6. Step 6: Final answer
    x = 54,717.64

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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.