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Finding the Fourth Proportional to 110,003.90, 165,005.85 and 65,607.80

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Solution

The fourth proportional to 110,003.90, 165,005.85 and 65,607.80 is: 98,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,003.90 : 165,005.85 = 65,607.80 : x
  2. Step 2: Convert to fraction form
    110,003.90/165,005.85 = 65,607.80/x
  3. Step 3: Cross multiply
    110,003.90x = 165,005.85 × 65,607.80
  4. Step 4: Simplify right side
    110,003.90x = 10,825,670,805.63
  5. Step 5: Solve for x
    x = 10,825,670,805.63/110,003.90
  6. Step 6: Final answer
    x = 98,411.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.