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Finding the Fourth Proportional to 528,041.80, 792,062.70 and 248,105.80

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Solution

The fourth proportional to 528,041.80, 792,062.70 and 248,105.80 is: 372,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,041.80 : 792,062.70 = 248,105.80 : x
  2. Step 2: Convert to fraction form
    528,041.80/792,062.70 = 248,105.80/x
  3. Step 3: Cross multiply
    528,041.80x = 792,062.70 × 248,105.80
  4. Step 4: Simplify right side
    528,041.80x = 196,515,349,833.66
  5. Step 5: Solve for x
    x = 196,515,349,833.66/528,041.80
  6. Step 6: Final answer
    x = 372,158.70

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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.