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Finding the Fourth Proportional to 162,788.30, 244,182.45 and 103,666.40

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Solution

The fourth proportional to 162,788.30, 244,182.45 and 103,666.40 is: 155,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,788.30 : 244,182.45 = 103,666.40 : x
  2. Step 2: Convert to fraction form
    162,788.30/244,182.45 = 103,666.40/x
  3. Step 3: Cross multiply
    162,788.30x = 244,182.45 × 103,666.40
  4. Step 4: Simplify right side
    162,788.30x = 25,313,515,534.68
  5. Step 5: Solve for x
    x = 25,313,515,534.68/162,788.30
  6. Step 6: Final answer
    x = 155,499.60

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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.