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Finding the Fourth Proportional to 348,624.80, 522,985.80 and 148,943.60

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Solution

The fourth proportional to 348,624.80, 522,985.80 and 148,943.60 is: 223,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,624.80 : 522,985.80 = 148,943.60 : x
  2. Step 2: Convert to fraction form
    348,624.80/522,985.80 = 148,943.60/x
  3. Step 3: Cross multiply
    348,624.80x = 522,985.80 × 148,943.60
  4. Step 4: Simplify right side
    348,624.80x = 77,895,387,800.88
  5. Step 5: Solve for x
    x = 77,895,387,800.88/348,624.80
  6. Step 6: Final answer
    x = 223,436.16

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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.