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Finding the Fourth Proportional to 312,803.08, 469,105.50 and 113,097.04

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Solution

The fourth proportional to 312,803.08, 469,105.50 and 113,097.04 is: 169,609.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,803.08 : 469,105.50 = 113,097.04 : x
  2. Step 2: Convert to fraction form
    312,803.08/469,105.50 = 113,097.04/x
  3. Step 3: Cross multiply
    312,803.08x = 469,105.50 × 113,097.04
  4. Step 4: Simplify right side
    312,803.08x = 53,054,443,497.72
  5. Step 5: Solve for x
    x = 53,054,443,497.72/312,803.08
  6. Step 6: Final answer
    x = 169,609.72

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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.