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Finding the Fourth Proportional to 55,490,438.20, 83,235,657.30 and 55,490,438.20

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Solution

The fourth proportional to 55,490,438.20, 83,235,657.30 and 55,490,438.20 is: 83,235,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,490,438.20 : 83,235,657.30 = 55,490,438.20 : x
  2. Step 2: Convert to fraction form
    55,490,438.20/83,235,657.30 = 55,490,438.20/x
  3. Step 3: Cross multiply
    55,490,438.20x = 83,235,657.30 × 55,490,438.20
  4. Step 4: Simplify right side
    55,490,438.20x = 4,618,783,097,442,029
  5. Step 5: Solve for x
    x = 4,618,783,097,442,029/55,490,438.20
  6. Step 6: Final answer
    x = 83,235,657.30

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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.