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Finding the Fourth Proportional to 381,700.50, 572,550.75 and 119,044.50

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Solution

The fourth proportional to 381,700.50, 572,550.75 and 119,044.50 is: 178,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,700.50 : 572,550.75 = 119,044.50 : x
  2. Step 2: Convert to fraction form
    381,700.50/572,550.75 = 119,044.50/x
  3. Step 3: Cross multiply
    381,700.50x = 572,550.75 × 119,044.50
  4. Step 4: Simplify right side
    381,700.50x = 68,159,017,758.38
  5. Step 5: Solve for x
    x = 68,159,017,758.38/381,700.50
  6. Step 6: Final answer
    x = 178,566.75

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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.