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Finding the Fourth Proportional to 85,581.93, 118,093.96 and 47,335.40

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Solution

The fourth proportional to 85,581.93, 118,093.96 and 47,335.40 is: 65,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,581.93 : 118,093.96 = 47,335.40 : x
  2. Step 2: Convert to fraction form
    85,581.93/118,093.96 = 47,335.40/x
  3. Step 3: Cross multiply
    85,581.93x = 118,093.96 × 47,335.40
  4. Step 4: Simplify right side
    85,581.93x = 5,590,024,834.18
  5. Step 5: Solve for x
    x = 5,590,024,834.18/85,581.93
  6. Step 6: Final answer
    x = 65,317.82

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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.