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Finding the Fourth Proportional to 207,924.60, 311,108.40 and 148,091.40

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Solution

The fourth proportional to 207,924.60, 311,108.40 and 148,091.40 is: 221,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,924.60 : 311,108.40 = 148,091.40 : x
  2. Step 2: Convert to fraction form
    207,924.60/311,108.40 = 148,091.40/x
  3. Step 3: Cross multiply
    207,924.60x = 311,108.40 × 148,091.40
  4. Step 4: Simplify right side
    207,924.60x = 46,072,478,507.76
  5. Step 5: Solve for x
    x = 46,072,478,507.76/207,924.60
  6. Step 6: Final answer
    x = 221,582.62

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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.