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Finding the Fourth Proportional to 85,598.65, 118,129.62 and 47,357.54

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Solution

The fourth proportional to 85,598.65, 118,129.62 and 47,357.54 is: 65,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.65 : 118,129.62 = 47,357.54 : x
  2. Step 2: Convert to fraction form
    85,598.65/118,129.62 = 47,357.54/x
  3. Step 3: Cross multiply
    85,598.65x = 118,129.62 × 47,357.54
  4. Step 4: Simplify right side
    85,598.65x = 5,594,328,204.33
  5. Step 5: Solve for x
    x = 5,594,328,204.33/85,598.65
  6. Step 6: Final answer
    x = 65,355.33

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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.