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Finding the Fourth Proportional to 168,607.64, 252,693.42 and 126,154.64

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Solution

The fourth proportional to 168,607.64, 252,693.42 and 126,154.64 is: 189,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,607.64 : 252,693.42 = 126,154.64 : x
  2. Step 2: Convert to fraction form
    168,607.64/252,693.42 = 126,154.64/x
  3. Step 3: Cross multiply
    168,607.64x = 252,693.42 × 126,154.64
  4. Step 4: Simplify right side
    168,607.64x = 31,878,447,430.47
  5. Step 5: Solve for x
    x = 31,878,447,430.47/168,607.64
  6. Step 6: Final answer
    x = 189,068.82

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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.