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Finding the Fourth Proportional to 271,988.18, 375,321.64 and 157,274.24

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Solution

The fourth proportional to 271,988.18, 375,321.64 and 157,274.24 is: 217,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,988.18 : 375,321.64 = 157,274.24 : x
  2. Step 2: Convert to fraction form
    271,988.18/375,321.64 = 157,274.24/x
  3. Step 3: Cross multiply
    271,988.18x = 375,321.64 × 157,274.24
  4. Step 4: Simplify right side
    271,988.18x = 59,028,425,686.55
  5. Step 5: Solve for x
    x = 59,028,425,686.55/271,988.18
  6. Step 6: Final answer
    x = 217,025.70

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1.5x scale

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.