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Finding the Fourth Proportional to 666,061.44, 999,155.08 and 186,289.08

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Solution

The fourth proportional to 666,061.44, 999,155.08 and 186,289.08 is: 279,451.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,061.44 : 999,155.08 = 186,289.08 : x
  2. Step 2: Convert to fraction form
    666,061.44/999,155.08 = 186,289.08/x
  3. Step 3: Cross multiply
    666,061.44x = 999,155.08 × 186,289.08
  4. Step 4: Simplify right side
    666,061.44x = 186,131,680,630.53
  5. Step 5: Solve for x
    x = 186,131,680,630.53/666,061.44
  6. Step 6: Final answer
    x = 279,451.22

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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.