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Finding the Fourth Proportional to 326,505.76, 489,805.38 and 101,886.28

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Solution

The fourth proportional to 326,505.76, 489,805.38 and 101,886.28 is: 152,844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,505.76 : 489,805.38 = 101,886.28 : x
  2. Step 2: Convert to fraction form
    326,505.76/489,805.38 = 101,886.28/x
  3. Step 3: Cross multiply
    326,505.76x = 489,805.38 × 101,886.28
  4. Step 4: Simplify right side
    326,505.76x = 49,904,448,092.19
  5. Step 5: Solve for x
    x = 49,904,448,092.19/326,505.76
  6. Step 6: Final answer
    x = 152,844.01

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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.