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Finding the Fourth Proportional to 312,805.06, 469,108.50 and 113,099.02

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Solution

The fourth proportional to 312,805.06, 469,108.50 and 113,099.02 is: 169,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,805.06 : 469,108.50 = 113,099.02 : x
  2. Step 2: Convert to fraction form
    312,805.06/469,108.50 = 113,099.02/x
  3. Step 3: Cross multiply
    312,805.06x = 469,108.50 × 113,099.02
  4. Step 4: Simplify right side
    312,805.06x = 53,055,711,623.67
  5. Step 5: Solve for x
    x = 53,055,711,623.67/312,805.06
  6. Step 6: Final answer
    x = 169,612.70

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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.