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Finding the Fourth Proportional to 86,113.17, 118,835.64 and 48,387.42

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Solution

The fourth proportional to 86,113.17, 118,835.64 and 48,387.42 is: 66,774.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,113.17 : 118,835.64 = 48,387.42 : x
  2. Step 2: Convert to fraction form
    86,113.17/118,835.64 = 48,387.42/x
  3. Step 3: Cross multiply
    86,113.17x = 118,835.64 × 48,387.42
  4. Step 4: Simplify right side
    86,113.17x = 5,750,150,023.65
  5. Step 5: Solve for x
    x = 5,750,150,023.65/86,113.17
  6. Step 6: Final answer
    x = 66,774.34

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1.5x scale

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.