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Finding the Fourth Proportional to 110,873.25, 152,825.40 and 86,631.84

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Solution

The fourth proportional to 110,873.25, 152,825.40 and 86,631.84 is: 119,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,873.25 : 152,825.40 = 86,631.84 : x
  2. Step 2: Convert to fraction form
    110,873.25/152,825.40 = 86,631.84/x
  3. Step 3: Cross multiply
    110,873.25x = 152,825.40 × 86,631.84
  4. Step 4: Simplify right side
    110,873.25x = 13,239,545,600.74
  5. Step 5: Solve for x
    x = 13,239,545,600.74/110,873.25
  6. Step 6: Final answer
    x = 119,411.54

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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.