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Finding the Fourth Proportional to 110,356.48, 165,574.68 and 68,187.34

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Solution

The fourth proportional to 110,356.48, 165,574.68 and 68,187.34 is: 102,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,356.48 : 165,574.68 = 68,187.34 : x
  2. Step 2: Convert to fraction form
    110,356.48/165,574.68 = 68,187.34/x
  3. Step 3: Cross multiply
    110,356.48x = 165,574.68 × 68,187.34
  4. Step 4: Simplify right side
    110,356.48x = 11,290,097,000.55
  5. Step 5: Solve for x
    x = 11,290,097,000.55/110,356.48
  6. Step 6: Final answer
    x = 102,305.70

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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.