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Finding the Fourth Proportional to 192,915.90, 266,159.18 and 112,326.17

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Solution

The fourth proportional to 192,915.90, 266,159.18 and 112,326.17 is: 154,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,915.90 : 266,159.18 = 112,326.17 : x
  2. Step 2: Convert to fraction form
    192,915.90/266,159.18 = 112,326.17/x
  3. Step 3: Cross multiply
    192,915.90x = 266,159.18 × 112,326.17
  4. Step 4: Simplify right side
    192,915.90x = 29,896,640,249.76
  5. Step 5: Solve for x
    x = 29,896,640,249.76/192,915.90
  6. Step 6: Final answer
    x = 154,972.40

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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.