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Finding the Fourth Proportional to 105,873.12, 158,809.68 and 35,801.64

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Solution

The fourth proportional to 105,873.12, 158,809.68 and 35,801.64 is: 53,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,873.12 : 158,809.68 = 35,801.64 : x
  2. Step 2: Convert to fraction form
    105,873.12/158,809.68 = 35,801.64/x
  3. Step 3: Cross multiply
    105,873.12x = 158,809.68 × 35,801.64
  4. Step 4: Simplify right side
    105,873.12x = 5,685,646,991.88
  5. Step 5: Solve for x
    x = 5,685,646,991.88/105,873.12
  6. Step 6: Final answer
    x = 53,702.46

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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.