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Finding the Fourth Proportional to 253,834.65, 380,351.42 and 93,690.16

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Solution

The fourth proportional to 253,834.65, 380,351.42 and 93,690.16 is: 140,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,834.65 : 380,351.42 = 93,690.16 : x
  2. Step 2: Convert to fraction form
    253,834.65/380,351.42 = 93,690.16/x
  3. Step 3: Cross multiply
    253,834.65x = 380,351.42 × 93,690.16
  4. Step 4: Simplify right side
    253,834.65x = 35,635,184,927.58
  5. Step 5: Solve for x
    x = 35,635,184,927.58/253,834.65
  6. Step 6: Final answer
    x = 140,387.40

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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.