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Finding the Fourth Proportional to 348,548.94, 522,842.85 and 99,211.50

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Solution

The fourth proportional to 348,548.94, 522,842.85 and 99,211.50 is: 148,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,548.94 : 522,842.85 = 99,211.50 : x
  2. Step 2: Convert to fraction form
    348,548.94/522,842.85 = 99,211.50/x
  3. Step 3: Cross multiply
    348,548.94x = 522,842.85 × 99,211.50
  4. Step 4: Simplify right side
    348,548.94x = 51,872,023,412.78
  5. Step 5: Solve for x
    x = 51,872,023,412.78/348,548.94
  6. Step 6: Final answer
    x = 148,822.78

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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.