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Finding the Fourth Proportional to 270,828.66, 405,994.21 and 93,293.47

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Solution

The fourth proportional to 270,828.66, 405,994.21 and 93,293.47 is: 139,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,828.66 : 405,994.21 = 93,293.47 : x
  2. Step 2: Convert to fraction form
    270,828.66/405,994.21 = 93,293.47/x
  3. Step 3: Cross multiply
    270,828.66x = 405,994.21 × 93,293.47
  4. Step 4: Simplify right side
    270,828.66x = 37,876,608,925.07
  5. Step 5: Solve for x
    x = 37,876,608,925.07/270,828.66
  6. Step 6: Final answer
    x = 139,854.51

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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.