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Finding the Fourth Proportional to 192,781.84, 266,038.88 and 107,898.88

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Solution

The fourth proportional to 192,781.84, 266,038.88 and 107,898.88 is: 148,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,781.84 : 266,038.88 = 107,898.88 : x
  2. Step 2: Convert to fraction form
    192,781.84/266,038.88 = 107,898.88/x
  3. Step 3: Cross multiply
    192,781.84x = 266,038.88 × 107,898.88
  4. Step 4: Simplify right side
    192,781.84x = 28,705,297,188.45
  5. Step 5: Solve for x
    x = 28,705,297,188.45/192,781.84
  6. Step 6: Final answer
    x = 148,900.42

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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.