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Finding the Fourth Proportional to 72,616,949.80, 108,925,424.70 and 26,558,729.80

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Solution

The fourth proportional to 72,616,949.80, 108,925,424.70 and 26,558,729.80 is: 39,838,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,616,949.80 : 108,925,424.70 = 26,558,729.80 : x
  2. Step 2: Convert to fraction form
    72,616,949.80/108,925,424.70 = 26,558,729.80/x
  3. Step 3: Cross multiply
    72,616,949.80x = 108,925,424.70 × 26,558,729.80
  4. Step 4: Simplify right side
    72,616,949.80x = 2,892,920,922,957,546
  5. Step 5: Solve for x
    x = 2,892,920,922,957,546/72,616,949.80
  6. Step 6: Final answer
    x = 39,838,094.70

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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.