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Finding the Fourth Proportional to 206,925.84, 310,388.76 and 73,800.72

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Solution

The fourth proportional to 206,925.84, 310,388.76 and 73,800.72 is: 110,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,925.84 : 310,388.76 = 73,800.72 : x
  2. Step 2: Convert to fraction form
    206,925.84/310,388.76 = 73,800.72/x
  3. Step 3: Cross multiply
    206,925.84x = 310,388.76 × 73,800.72
  4. Step 4: Simplify right side
    206,925.84x = 22,906,913,967.91
  5. Step 5: Solve for x
    x = 22,906,913,967.91/206,925.84
  6. Step 6: Final answer
    x = 110,701.08

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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.