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Finding the Fourth Proportional to 348,011.80, 522,066.30 and 148,330.60

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Solution

The fourth proportional to 348,011.80, 522,066.30 and 148,330.60 is: 222,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,011.80 : 522,066.30 = 148,330.60 : x
  2. Step 2: Convert to fraction form
    348,011.80/522,066.30 = 148,330.60/x
  3. Step 3: Cross multiply
    348,011.80x = 522,066.30 × 148,330.60
  4. Step 4: Simplify right side
    348,011.80x = 77,438,407,518.78
  5. Step 5: Solve for x
    x = 77,438,407,518.78/348,011.80
  6. Step 6: Final answer
    x = 222,516.61

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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.