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Finding the Fourth Proportional to 248,047.76, 342,185.64 and 147,374.48

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Solution

The fourth proportional to 248,047.76, 342,185.64 and 147,374.48 is: 203,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,047.76 : 342,185.64 = 147,374.48 : x
  2. Step 2: Convert to fraction form
    248,047.76/342,185.64 = 147,374.48/x
  3. Step 3: Cross multiply
    248,047.76x = 342,185.64 × 147,374.48
  4. Step 4: Simplify right side
    248,047.76x = 50,429,430,758.47
  5. Step 5: Solve for x
    x = 50,429,430,758.47/248,047.76
  6. Step 6: Final answer
    x = 203,305.33

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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.