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Finding the Fourth Proportional to 248,012.64, 342,258.48 and 147,411.36

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Solution

The fourth proportional to 248,012.64, 342,258.48 and 147,411.36 is: 203,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,012.64 : 342,258.48 = 147,411.36 : x
  2. Step 2: Convert to fraction form
    248,012.64/342,258.48 = 147,411.36/x
  3. Step 3: Cross multiply
    248,012.64x = 342,258.48 × 147,411.36
  4. Step 4: Simplify right side
    248,012.64x = 50,452,788,008.33
  5. Step 5: Solve for x
    x = 50,452,788,008.33/248,012.64
  6. Step 6: Final answer
    x = 203,428.29

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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.