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Finding the Fourth Proportional to 528,061.84, 791,776.43 and 168,077.18

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Solution

The fourth proportional to 528,061.84, 791,776.43 and 168,077.18 is: 252,015.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,061.84 : 791,776.43 = 168,077.18 : x
  2. Step 2: Convert to fraction form
    528,061.84/791,776.43 = 168,077.18/x
  3. Step 3: Cross multiply
    528,061.84x = 791,776.43 × 168,077.18
  4. Step 4: Simplify right side
    528,061.84x = 133,079,551,314.21
  5. Step 5: Solve for x
    x = 133,079,551,314.21/528,061.84
  6. Step 6: Final answer
    x = 252,015.09

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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.