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Finding the Fourth Proportional to 271,424.40, 374,509.57 and 156,701.05

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Solution

The fourth proportional to 271,424.40, 374,509.57 and 156,701.05 is: 216,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,424.40 : 374,509.57 = 156,701.05 : x
  2. Step 2: Convert to fraction form
    271,424.40/374,509.57 = 156,701.05/x
  3. Step 3: Cross multiply
    271,424.40x = 374,509.57 × 156,701.05
  4. Step 4: Simplify right side
    271,424.40x = 58,686,042,854.05
  5. Step 5: Solve for x
    x = 58,686,042,854.05/271,424.40
  6. Step 6: Final answer
    x = 216,215.06

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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.