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Finding the Fourth Proportional to 117,643.86, 176,419.08 and 42,723.14

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Solution

The fourth proportional to 117,643.86, 176,419.08 and 42,723.14 is: 64,067.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,643.86 : 176,419.08 = 42,723.14 : x
  2. Step 2: Convert to fraction form
    117,643.86/176,419.08 = 42,723.14/x
  3. Step 3: Cross multiply
    117,643.86x = 176,419.08 × 42,723.14
  4. Step 4: Simplify right side
    117,643.86x = 7,537,176,171.42
  5. Step 5: Solve for x
    x = 7,537,176,171.42/117,643.86
  6. Step 6: Final answer
    x = 64,067.74

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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.