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Finding the Fourth Proportional to 52,641,880.80, 78,850,846.80 and 43,683,928.80

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Solution

The fourth proportional to 52,641,880.80, 78,850,846.80 and 43,683,928.80 is: 65,432,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,641,880.80 : 78,850,846.80 = 43,683,928.80 : x
  2. Step 2: Convert to fraction form
    52,641,880.80/78,850,846.80 = 43,683,928.80/x
  3. Step 3: Cross multiply
    52,641,880.80x = 78,850,846.80 × 43,683,928.80
  4. Step 4: Simplify right side
    52,641,880.80x = 3,444,514,777,430,907.50
  5. Step 5: Solve for x
    x = 3,444,514,777,430,907.50/52,641,880.80
  6. Step 6: Final answer
    x = 65,432,973.24

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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.