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Finding the Fourth Proportional to 55,859,690.70, 83,739,672.45 and 21,773,108.70

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Solution

The fourth proportional to 55,859,690.70, 83,739,672.45 and 21,773,108.70 is: 32,640,227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,859,690.70 : 83,739,672.45 = 21,773,108.70 : x
  2. Step 2: Convert to fraction form
    55,859,690.70/83,739,672.45 = 21,773,108.70/x
  3. Step 3: Cross multiply
    55,859,690.70x = 83,739,672.45 × 21,773,108.70
  4. Step 4: Simplify right side
    55,859,690.70x = 1,823,272,990,756,245.25
  5. Step 5: Solve for x
    x = 1,823,272,990,756,245.25/55,859,690.70
  6. Step 6: Final answer
    x = 32,640,227.11

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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.