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Finding the Fourth Proportional to 85,353.93, 117,788.43 and 47,113.49

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Solution

The fourth proportional to 85,353.93, 117,788.43 and 47,113.49 is: 65,016.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,353.93 : 117,788.43 = 47,113.49 : x
  2. Step 2: Convert to fraction form
    85,353.93/117,788.43 = 47,113.49/x
  3. Step 3: Cross multiply
    85,353.93x = 117,788.43 × 47,113.49
  4. Step 4: Simplify right side
    85,353.93x = 5,549,423,518.32
  5. Step 5: Solve for x
    x = 5,549,423,518.32/85,353.93
  6. Step 6: Final answer
    x = 65,016.61

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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.