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Finding the Fourth Proportional to 198,258, 273,414.54 and 130,248

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Solution

The fourth proportional to 198,258, 273,414.54 and 130,248 is: 179,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,258 : 273,414.54 = 130,248 : x
  2. Step 2: Convert to fraction form
    198,258/273,414.54 = 130,248/x
  3. Step 3: Cross multiply
    198,258x = 273,414.54 × 130,248
  4. Step 4: Simplify right side
    198,258x = 35,611,697,005.92
  5. Step 5: Solve for x
    x = 35,611,697,005.92/198,258
  6. Step 6: Final answer
    x = 179,623.00

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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.