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Finding the Fourth Proportional to 322,352.40, 483,526.08 and 85,711.80

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Solution

The fourth proportional to 322,352.40, 483,526.08 and 85,711.80 is: 128,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,352.40 : 483,526.08 = 85,711.80 : x
  2. Step 2: Convert to fraction form
    322,352.40/483,526.08 = 85,711.80/x
  3. Step 3: Cross multiply
    322,352.40x = 483,526.08 × 85,711.80
  4. Step 4: Simplify right side
    322,352.40x = 41,443,890,663.74
  5. Step 5: Solve for x
    x = 41,443,890,663.74/322,352.40
  6. Step 6: Final answer
    x = 128,567.03

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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.