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Finding the Fourth Proportional to 177,624.30, 266,436.45 and 128,052.30

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Solution

The fourth proportional to 177,624.30, 266,436.45 and 128,052.30 is: 192,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,624.30 : 266,436.45 = 128,052.30 : x
  2. Step 2: Convert to fraction form
    177,624.30/266,436.45 = 128,052.30/x
  3. Step 3: Cross multiply
    177,624.30x = 266,436.45 × 128,052.30
  4. Step 4: Simplify right side
    177,624.30x = 34,117,800,226.34
  5. Step 5: Solve for x
    x = 34,117,800,226.34/177,624.30
  6. Step 6: Final answer
    x = 192,078.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.