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Finding the Fourth Proportional to 221,641.40, 332,670.90 and 116,535.80

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Solution

The fourth proportional to 221,641.40, 332,670.90 and 116,535.80 is: 174,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,641.40 : 332,670.90 = 116,535.80 : x
  2. Step 2: Convert to fraction form
    221,641.40/332,670.90 = 116,535.80/x
  3. Step 3: Cross multiply
    221,641.40x = 332,670.90 × 116,535.80
  4. Step 4: Simplify right side
    221,641.40x = 38,768,069,468.22
  5. Step 5: Solve for x
    x = 38,768,069,468.22/221,641.40
  6. Step 6: Final answer
    x = 174,913.48

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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.