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Finding the Fourth Proportional to 110,788.83, 153,015.89 and 80,708.67

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Solution

The fourth proportional to 110,788.83, 153,015.89 and 80,708.67 is: 111,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,788.83 : 153,015.89 = 80,708.67 : x
  2. Step 2: Convert to fraction form
    110,788.83/153,015.89 = 80,708.67/x
  3. Step 3: Cross multiply
    110,788.83x = 153,015.89 × 80,708.67
  4. Step 4: Simplify right side
    110,788.83x = 12,349,708,567.22
  5. Step 5: Solve for x
    x = 12,349,708,567.22/110,788.83
  6. Step 6: Final answer
    x = 111,470.70

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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.