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Finding the Fourth Proportional to 74,277.40, 111,366.90 and 41,013.40

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Solution

The fourth proportional to 74,277.40, 111,366.90 and 41,013.40 is: 61,492.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,277.40 : 111,366.90 = 41,013.40 : x
  2. Step 2: Convert to fraction form
    74,277.40/111,366.90 = 41,013.40/x
  3. Step 3: Cross multiply
    74,277.40x = 111,366.90 × 41,013.40
  4. Step 4: Simplify right side
    74,277.40x = 4,567,535,216.46
  5. Step 5: Solve for x
    x = 4,567,535,216.46/74,277.40
  6. Step 6: Final answer
    x = 61,492.93

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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.