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Finding the Fourth Proportional to 326,041.11, 488,716.47 and 109,693.89

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Solution

The fourth proportional to 326,041.11, 488,716.47 and 109,693.89 is: 164,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,041.11 : 488,716.47 = 109,693.89 : x
  2. Step 2: Convert to fraction form
    326,041.11/488,716.47 = 109,693.89/x
  3. Step 3: Cross multiply
    326,041.11x = 488,716.47 × 109,693.89
  4. Step 4: Simplify right side
    326,041.11x = 53,609,210,701.37
  5. Step 5: Solve for x
    x = 53,609,210,701.37/326,041.11
  6. Step 6: Final answer
    x = 164,424.70

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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.