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Finding the Fourth Proportional to 348,010.80, 522,064.80 and 148,329.60

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Solution

The fourth proportional to 348,010.80, 522,064.80 and 148,329.60 is: 222,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,010.80 : 522,064.80 = 148,329.60 : x
  2. Step 2: Convert to fraction form
    348,010.80/522,064.80 = 148,329.60/x
  3. Step 3: Cross multiply
    348,010.80x = 522,064.80 × 148,329.60
  4. Step 4: Simplify right side
    348,010.80x = 77,437,662,958.08
  5. Step 5: Solve for x
    x = 77,437,662,958.08/348,010.80
  6. Step 6: Final answer
    x = 222,515.11

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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.