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Finding the Fourth Proportional to 74,797.20, 112,051.80 and 58,918.20

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Solution

The fourth proportional to 74,797.20, 112,051.80 and 58,918.20 is: 88,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,797.20 : 112,051.80 = 58,918.20 : x
  2. Step 2: Convert to fraction form
    74,797.20/112,051.80 = 58,918.20/x
  3. Step 3: Cross multiply
    74,797.20x = 112,051.80 × 58,918.20
  4. Step 4: Simplify right side
    74,797.20x = 6,601,890,362.76
  5. Step 5: Solve for x
    x = 6,601,890,362.76/74,797.20
  6. Step 6: Final answer
    x = 88,263.87

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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.