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Finding the Fourth Proportional to 86,094.85, 118,810.12 and 47,853.42

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Solution

The fourth proportional to 86,094.85, 118,810.12 and 47,853.42 is: 66,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,094.85 : 118,810.12 = 47,853.42 : x
  2. Step 2: Convert to fraction form
    86,094.85/118,810.12 = 47,853.42/x
  3. Step 3: Cross multiply
    86,094.85x = 118,810.12 × 47,853.42
  4. Step 4: Simplify right side
    86,094.85x = 5,685,470,572.61
  5. Step 5: Solve for x
    x = 5,685,470,572.61/86,094.85
  6. Step 6: Final answer
    x = 66,037.29

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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.