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Finding the Fourth Proportional to 522,600.30, 783,900.45 and 148,574.70

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Solution

The fourth proportional to 522,600.30, 783,900.45 and 148,574.70 is: 222,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,600.30 : 783,900.45 = 148,574.70 : x
  2. Step 2: Convert to fraction form
    522,600.30/783,900.45 = 148,574.70/x
  3. Step 3: Cross multiply
    522,600.30x = 783,900.45 × 148,574.70
  4. Step 4: Simplify right side
    522,600.30x = 116,467,774,188.62
  5. Step 5: Solve for x
    x = 116,467,774,188.62/522,600.30
  6. Step 6: Final answer
    x = 222,862.05

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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.