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Finding the Fourth Proportional to 347,903.70, 521,855.55 and 111,254.10

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Solution

The fourth proportional to 347,903.70, 521,855.55 and 111,254.10 is: 166,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,903.70 : 521,855.55 = 111,254.10 : x
  2. Step 2: Convert to fraction form
    347,903.70/521,855.55 = 111,254.10/x
  3. Step 3: Cross multiply
    347,903.70x = 521,855.55 × 111,254.10
  4. Step 4: Simplify right side
    347,903.70x = 58,058,569,545.26
  5. Step 5: Solve for x
    x = 58,058,569,545.26/347,903.70
  6. Step 6: Final answer
    x = 166,881.15

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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.