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Finding the Fourth Proportional to 52,809.31, 79,111.90 and 29,364.67

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Solution

The fourth proportional to 52,809.31, 79,111.90 and 29,364.67 is: 43,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,809.31 : 79,111.90 = 29,364.67 : x
  2. Step 2: Convert to fraction form
    52,809.31/79,111.90 = 29,364.67/x
  3. Step 3: Cross multiply
    52,809.31x = 79,111.90 × 29,364.67
  4. Step 4: Simplify right side
    52,809.31x = 2,323,094,689.75
  5. Step 5: Solve for x
    x = 2,323,094,689.75/52,809.31
  6. Step 6: Final answer
    x = 43,990.25

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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.