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Finding the Fourth Proportional to 528,056.77, 791,768.84 and 168,072.13

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Solution

The fourth proportional to 528,056.77, 791,768.84 and 168,072.13 is: 252,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,056.77 : 791,768.84 = 168,072.13 : x
  2. Step 2: Convert to fraction form
    528,056.77/791,768.84 = 168,072.13/x
  3. Step 3: Cross multiply
    528,056.77x = 791,768.84 × 168,072.13
  4. Step 4: Simplify right side
    528,056.77x = 133,074,272,451.86
  5. Step 5: Solve for x
    x = 133,074,272,451.86/528,056.77
  6. Step 6: Final answer
    x = 252,007.51

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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.