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Finding the Fourth Proportional to 78,833.34, 108,790.38 and 43,024.11

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Solution

The fourth proportional to 78,833.34, 108,790.38 and 43,024.11 is: 59,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.34 : 108,790.38 = 43,024.11 : x
  2. Step 2: Convert to fraction form
    78,833.34/108,790.38 = 43,024.11/x
  3. Step 3: Cross multiply
    78,833.34x = 108,790.38 × 43,024.11
  4. Step 4: Simplify right side
    78,833.34x = 4,680,609,276.06
  5. Step 5: Solve for x
    x = 4,680,609,276.06/78,833.34
  6. Step 6: Final answer
    x = 59,373.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.