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Finding the Fourth Proportional to 52,809,868.80, 79,214,803.20 and 50,896,681.20

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Solution

The fourth proportional to 52,809,868.80, 79,214,803.20 and 50,896,681.20 is: 76,345,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,809,868.80 : 79,214,803.20 = 50,896,681.20 : x
  2. Step 2: Convert to fraction form
    52,809,868.80/79,214,803.20 = 50,896,681.20/x
  3. Step 3: Cross multiply
    52,809,868.80x = 79,214,803.20 × 50,896,681.20
  4. Step 4: Simplify right side
    52,809,868.80x = 4,031,770,584,791,140
  5. Step 5: Solve for x
    x = 4,031,770,584,791,140/52,809,868.80
  6. Step 6: Final answer
    x = 76,345,021.80

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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.