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Finding the Fourth Proportional to 271,407.84, 374,559.97 and 156,707.66

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Solution

The fourth proportional to 271,407.84, 374,559.97 and 156,707.66 is: 216,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,407.84 : 374,559.97 = 156,707.66 : x
  2. Step 2: Convert to fraction form
    271,407.84/374,559.97 = 156,707.66/x
  3. Step 3: Cross multiply
    271,407.84x = 374,559.97 × 156,707.66
  4. Step 4: Simplify right side
    271,407.84x = 58,696,417,707.57
  5. Step 5: Solve for x
    x = 58,696,417,707.57/271,407.84
  6. Step 6: Final answer
    x = 216,266.48

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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.