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Finding the Fourth Proportional to 70,902.98, 106,354.47 and 48,648.89

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Solution

The fourth proportional to 70,902.98, 106,354.47 and 48,648.89 is: 72,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.98 : 106,354.47 = 48,648.89 : x
  2. Step 2: Convert to fraction form
    70,902.98/106,354.47 = 48,648.89/x
  3. Step 3: Cross multiply
    70,902.98x = 106,354.47 × 48,648.89
  4. Step 4: Simplify right side
    70,902.98x = 5,174,027,360.36
  5. Step 5: Solve for x
    x = 5,174,027,360.36/70,902.98
  6. Step 6: Final answer
    x = 72,973.34

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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.