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Finding the Fourth Proportional to 216,885.62, 323,852.12 and 191,372.51

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Solution

The fourth proportional to 216,885.62, 323,852.12 and 191,372.51 is: 285,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,885.62 : 323,852.12 = 191,372.51 : x
  2. Step 2: Convert to fraction form
    216,885.62/323,852.12 = 191,372.51/x
  3. Step 3: Cross multiply
    216,885.62x = 323,852.12 × 191,372.51
  4. Step 4: Simplify right side
    216,885.62x = 61,976,390,497.10
  5. Step 5: Solve for x
    x = 61,976,390,497.10/216,885.62
  6. Step 6: Final answer
    x = 285,756.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.