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Finding the Fourth Proportional to 176,419.15, 243,404.77 and 99,926.08

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Solution

The fourth proportional to 176,419.15, 243,404.77 and 99,926.08 is: 137,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,419.15 : 243,404.77 = 99,926.08 : x
  2. Step 2: Convert to fraction form
    176,419.15/243,404.77 = 99,926.08/x
  3. Step 3: Cross multiply
    176,419.15x = 243,404.77 × 99,926.08
  4. Step 4: Simplify right side
    176,419.15x = 24,322,484,519.40
  5. Step 5: Solve for x
    x = 24,322,484,519.40/176,419.15
  6. Step 6: Final answer
    x = 137,867.60

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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.