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Finding the Fourth Proportional to 74,877.48, 112,216.86 and 39,741.48

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Solution

The fourth proportional to 74,877.48, 112,216.86 and 39,741.48 is: 59,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,877.48 : 112,216.86 = 39,741.48 : x
  2. Step 2: Convert to fraction form
    74,877.48/112,216.86 = 39,741.48/x
  3. Step 3: Cross multiply
    74,877.48x = 112,216.86 × 39,741.48
  4. Step 4: Simplify right side
    74,877.48x = 4,459,664,097.35
  5. Step 5: Solve for x
    x = 4,459,664,097.35/74,877.48
  6. Step 6: Final answer
    x = 59,559.48

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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.