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Finding the Fourth Proportional to 72,629,948.70, 108,944,923.05 and 72,629,948.70

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Solution

The fourth proportional to 72,629,948.70, 108,944,923.05 and 72,629,948.70 is: 108,944,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,629,948.70 : 108,944,923.05 = 72,629,948.70 : x
  2. Step 2: Convert to fraction form
    72,629,948.70/108,944,923.05 = 72,629,948.70/x
  3. Step 3: Cross multiply
    72,629,948.70x = 108,944,923.05 × 72,629,948.70
  4. Step 4: Simplify right side
    72,629,948.70x = 7,912,664,172,246,948
  5. Step 5: Solve for x
    x = 7,912,664,172,246,948/72,629,948.70
  6. Step 6: Final answer
    x = 108,944,923.05

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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.