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Finding the Fourth Proportional to 94,360.92, 130,230.72 and 86,388.84

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Solution

The fourth proportional to 94,360.92, 130,230.72 and 86,388.84 is: 119,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,360.92 : 130,230.72 = 86,388.84 : x
  2. Step 2: Convert to fraction form
    94,360.92/130,230.72 = 86,388.84/x
  3. Step 3: Cross multiply
    94,360.92x = 130,230.72 × 86,388.84
  4. Step 4: Simplify right side
    94,360.92x = 11,250,480,833.16
  5. Step 5: Solve for x
    x = 11,250,480,833.16/94,360.92
  6. Step 6: Final answer
    x = 119,228.18

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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.