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Finding the Fourth Proportional to 74,991.65, 112,498.34 and 25,056.90

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Solution

The fourth proportional to 74,991.65, 112,498.34 and 25,056.90 is: 37,588.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,991.65 : 112,498.34 = 25,056.90 : x
  2. Step 2: Convert to fraction form
    74,991.65/112,498.34 = 25,056.90/x
  3. Step 3: Cross multiply
    74,991.65x = 112,498.34 × 25,056.90
  4. Step 4: Simplify right side
    74,991.65x = 2,818,859,530.26
  5. Step 5: Solve for x
    x = 2,818,859,530.26/74,991.65
  6. Step 6: Final answer
    x = 37,588.98

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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.