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Finding the Fourth Proportional to 168,106.79, 231,987.48 and 95,509.80

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Solution

The fourth proportional to 168,106.79, 231,987.48 and 95,509.80 is: 131,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,106.79 : 231,987.48 = 95,509.80 : x
  2. Step 2: Convert to fraction form
    168,106.79/231,987.48 = 95,509.80/x
  3. Step 3: Cross multiply
    168,106.79x = 231,987.48 × 95,509.80
  4. Step 4: Simplify right side
    168,106.79x = 22,157,077,459.14
  5. Step 5: Solve for x
    x = 22,157,077,459.14/168,106.79
  6. Step 6: Final answer
    x = 131,803.58

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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.