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Finding the Fourth Proportional to 248,387.16, 342,811.19 and 146,380.01

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Solution

The fourth proportional to 248,387.16, 342,811.19 and 146,380.01 is: 202,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,387.16 : 342,811.19 = 146,380.01 : x
  2. Step 2: Convert to fraction form
    248,387.16/342,811.19 = 146,380.01/x
  3. Step 3: Cross multiply
    248,387.16x = 342,811.19 × 146,380.01
  4. Step 4: Simplify right side
    248,387.16x = 50,180,702,974.36
  5. Step 5: Solve for x
    x = 50,180,702,974.36/248,387.16
  6. Step 6: Final answer
    x = 202,026.16

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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.