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Finding the Fourth Proportional to 105,371.61, 158,057.54 and 43,042.11

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Solution

The fourth proportional to 105,371.61, 158,057.54 and 43,042.11 is: 64,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,371.61 : 158,057.54 = 43,042.11 : x
  2. Step 2: Convert to fraction form
    105,371.61/158,057.54 = 43,042.11/x
  3. Step 3: Cross multiply
    105,371.61x = 158,057.54 × 43,042.11
  4. Step 4: Simplify right side
    105,371.61x = 6,803,130,023.01
  5. Step 5: Solve for x
    x = 6,803,130,023.01/105,371.61
  6. Step 6: Final answer
    x = 64,563.22

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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.