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Finding the Fourth Proportional to 248,572.16, 343,030.56 and 135,393.92

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Solution

The fourth proportional to 248,572.16, 343,030.56 and 135,393.92 is: 186,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,572.16 : 343,030.56 = 135,393.92 : x
  2. Step 2: Convert to fraction form
    248,572.16/343,030.56 = 135,393.92/x
  3. Step 3: Cross multiply
    248,572.16x = 343,030.56 × 135,393.92
  4. Step 4: Simplify right side
    248,572.16x = 46,444,252,198.20
  5. Step 5: Solve for x
    x = 46,444,252,198.20/248,572.16
  6. Step 6: Final answer
    x = 186,844.14

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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.