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Finding the Fourth Proportional to 47,616.66, 70,801.74 and 45,623.61

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Solution

The fourth proportional to 47,616.66, 70,801.74 and 45,623.61 is: 67,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,616.66 : 70,801.74 = 45,623.61 : x
  2. Step 2: Convert to fraction form
    47,616.66/70,801.74 = 45,623.61/x
  3. Step 3: Cross multiply
    47,616.66x = 70,801.74 × 45,623.61
  4. Step 4: Simplify right side
    47,616.66x = 3,230,230,973.08
  5. Step 5: Solve for x
    x = 3,230,230,973.08/47,616.66
  6. Step 6: Final answer
    x = 67,838.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.