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Finding the Fourth Proportional to 55,486,977.60, 83,230,466.40 and 50,112,206.40

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Solution

The fourth proportional to 55,486,977.60, 83,230,466.40 and 50,112,206.40 is: 75,168,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,486,977.60 : 83,230,466.40 = 50,112,206.40 : x
  2. Step 2: Convert to fraction form
    55,486,977.60/83,230,466.40 = 50,112,206.40/x
  3. Step 3: Cross multiply
    55,486,977.60x = 83,230,466.40 × 50,112,206.40
  4. Step 4: Simplify right side
    55,486,977.60x = 4,170,862,311,005,065
  5. Step 5: Solve for x
    x = 4,170,862,311,005,065/55,486,977.60
  6. Step 6: Final answer
    x = 75,168,309.60

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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.