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Finding the Fourth Proportional to 410,820.60, 616,230.90 and 144,881.40

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Solution

The fourth proportional to 410,820.60, 616,230.90 and 144,881.40 is: 217,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,820.60 : 616,230.90 = 144,881.40 : x
  2. Step 2: Convert to fraction form
    410,820.60/616,230.90 = 144,881.40/x
  3. Step 3: Cross multiply
    410,820.60x = 616,230.90 × 144,881.40
  4. Step 4: Simplify right side
    410,820.60x = 89,280,395,515.26
  5. Step 5: Solve for x
    x = 89,280,395,515.26/410,820.60
  6. Step 6: Final answer
    x = 217,322.10

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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.