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Finding the Fourth Proportional to 69,593,440.80, 104,390,161.20 and 59,814,926.40

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Solution

The fourth proportional to 69,593,440.80, 104,390,161.20 and 59,814,926.40 is: 89,722,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,593,440.80 : 104,390,161.20 = 59,814,926.40 : x
  2. Step 2: Convert to fraction form
    69,593,440.80/104,390,161.20 = 59,814,926.40/x
  3. Step 3: Cross multiply
    69,593,440.80x = 104,390,161.20 × 59,814,926.40
  4. Step 4: Simplify right side
    69,593,440.80x = 6,244,089,809,062,136
  5. Step 5: Solve for x
    x = 6,244,089,809,062,136/69,593,440.80
  6. Step 6: Final answer
    x = 89,722,389.60

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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.