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Finding the Fourth Proportional to 100,710.92, 151,066.38 and 47,369.73

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Solution

The fourth proportional to 100,710.92, 151,066.38 and 47,369.73 is: 71,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,710.92 : 151,066.38 = 47,369.73 : x
  2. Step 2: Convert to fraction form
    100,710.92/151,066.38 = 47,369.73/x
  3. Step 3: Cross multiply
    100,710.92x = 151,066.38 × 47,369.73
  4. Step 4: Simplify right side
    100,710.92x = 7,155,973,395.83
  5. Step 5: Solve for x
    x = 7,155,973,395.83/100,710.92
  6. Step 6: Final answer
    x = 71,054.60

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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.