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Finding the Fourth Proportional to 417,603.98, 626,099.24 and 133,130.90

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Solution

The fourth proportional to 417,603.98, 626,099.24 and 133,130.90 is: 199,598.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,603.98 : 626,099.24 = 133,130.90 : x
  2. Step 2: Convert to fraction form
    417,603.98/626,099.24 = 133,130.90/x
  3. Step 3: Cross multiply
    417,603.98x = 626,099.24 × 133,130.90
  4. Step 4: Simplify right side
    417,603.98x = 83,353,155,310.52
  5. Step 5: Solve for x
    x = 83,353,155,310.52/417,603.98
  6. Step 6: Final answer
    x = 199,598.57

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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.