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Finding the Fourth Proportional to 71,590.56, 98,901.09 and 47,119.08

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Solution

The fourth proportional to 71,590.56, 98,901.09 and 47,119.08 is: 65,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,590.56 : 98,901.09 = 47,119.08 : x
  2. Step 2: Convert to fraction form
    71,590.56/98,901.09 = 47,119.08/x
  3. Step 3: Cross multiply
    71,590.56x = 98,901.09 × 47,119.08
  4. Step 4: Simplify right side
    71,590.56x = 4,660,128,371.80
  5. Step 5: Solve for x
    x = 4,660,128,371.80/71,590.56
  6. Step 6: Final answer
    x = 65,094.17

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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.