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Finding the Fourth Proportional to 66,043,694.40, 98,869,586.40 and 49,079,572.80

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Solution

The fourth proportional to 66,043,694.40, 98,869,586.40 and 49,079,572.80 is: 73,473,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,043,694.40 : 98,869,586.40 = 49,079,572.80 : x
  2. Step 2: Convert to fraction form
    66,043,694.40/98,869,586.40 = 49,079,572.80/x
  3. Step 3: Cross multiply
    66,043,694.40x = 98,869,586.40 × 49,079,572.80
  4. Step 4: Simplify right side
    66,043,694.40x = 4,852,477,063,424,690
  5. Step 5: Solve for x
    x = 4,852,477,063,424,690/66,043,694.40
  6. Step 6: Final answer
    x = 73,473,737.46

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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.