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Finding the Fourth Proportional to 107,325.61, 160,988.25 and 40,765.61

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Solution

The fourth proportional to 107,325.61, 160,988.25 and 40,765.61 is: 61,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,325.61 : 160,988.25 = 40,765.61 : x
  2. Step 2: Convert to fraction form
    107,325.61/160,988.25 = 40,765.61/x
  3. Step 3: Cross multiply
    107,325.61x = 160,988.25 × 40,765.61
  4. Step 4: Simplify right side
    107,325.61x = 6,562,784,214.08
  5. Step 5: Solve for x
    x = 6,562,784,214.08/107,325.61
  6. Step 6: Final answer
    x = 61,148.35

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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.