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Finding the Fourth Proportional to 248,072.63, 342,342.65 and 134,897.81

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Solution

The fourth proportional to 248,072.63, 342,342.65 and 134,897.81 is: 186,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,072.63 : 342,342.65 = 134,897.81 : x
  2. Step 2: Convert to fraction form
    248,072.63/342,342.65 = 134,897.81/x
  3. Step 3: Cross multiply
    248,072.63x = 342,342.65 × 134,897.81
  4. Step 4: Simplify right side
    248,072.63x = 46,181,272,380.13
  5. Step 5: Solve for x
    x = 46,181,272,380.13/248,072.63
  6. Step 6: Final answer
    x = 186,160.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.