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Finding the Fourth Proportional to 348,548.55, 522,812.02 and 99,230.55

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Solution

The fourth proportional to 348,548.55, 522,812.02 and 99,230.55 is: 148,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,548.55 : 522,812.02 = 99,230.55 : x
  2. Step 2: Convert to fraction form
    348,548.55/522,812.02 = 99,230.55/x
  3. Step 3: Cross multiply
    348,548.55x = 522,812.02 × 99,230.55
  4. Step 4: Simplify right side
    348,548.55x = 51,878,924,291.21
  5. Step 5: Solve for x
    x = 51,878,924,291.21/348,548.55
  6. Step 6: Final answer
    x = 148,842.75

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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.