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Finding the Fourth Proportional to 439,806.96, 659,753.64 and 124,266.32

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Solution

The fourth proportional to 439,806.96, 659,753.64 and 124,266.32 is: 186,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,806.96 : 659,753.64 = 124,266.32 : x
  2. Step 2: Convert to fraction form
    439,806.96/659,753.64 = 124,266.32/x
  3. Step 3: Cross multiply
    439,806.96x = 659,753.64 × 124,266.32
  4. Step 4: Simplify right side
    439,806.96x = 81,985,156,949.40
  5. Step 5: Solve for x
    x = 81,985,156,949.40/439,806.96
  6. Step 6: Final answer
    x = 186,411.69

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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.