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Finding the Fourth Proportional to 62,981,877.60, 94,514,806.80 and 28,885,672.80

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Solution

The fourth proportional to 62,981,877.60, 94,514,806.80 and 28,885,672.80 is: 43,347,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,981,877.60 : 94,514,806.80 = 28,885,672.80 : x
  2. Step 2: Convert to fraction form
    62,981,877.60/94,514,806.80 = 28,885,672.80/x
  3. Step 3: Cross multiply
    62,981,877.60x = 94,514,806.80 × 28,885,672.80
  4. Step 4: Simplify right side
    62,981,877.60x = 2,730,123,783,980,015
  5. Step 5: Solve for x
    x = 2,730,123,783,980,015/62,981,877.60
  6. Step 6: Final answer
    x = 43,347,767.45

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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.