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Finding the Fourth Proportional to 442,157.80, 663,236.70 and 109,733.80

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Solution

The fourth proportional to 442,157.80, 663,236.70 and 109,733.80 is: 164,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,157.80 : 663,236.70 = 109,733.80 : x
  2. Step 2: Convert to fraction form
    442,157.80/663,236.70 = 109,733.80/x
  3. Step 3: Cross multiply
    442,157.80x = 663,236.70 × 109,733.80
  4. Step 4: Simplify right side
    442,157.80x = 72,779,483,390.46
  5. Step 5: Solve for x
    x = 72,779,483,390.46/442,157.80
  6. Step 6: Final answer
    x = 164,600.70

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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.