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Finding the Fourth Proportional to 55,779,813.90, 83,669,720.85 and 55,779,813.90

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Solution

The fourth proportional to 55,779,813.90, 83,669,720.85 and 55,779,813.90 is: 83,669,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,779,813.90 : 83,669,720.85 = 55,779,813.90 : x
  2. Step 2: Convert to fraction form
    55,779,813.90/83,669,720.85 = 55,779,813.90/x
  3. Step 3: Cross multiply
    55,779,813.90x = 83,669,720.85 × 55,779,813.90
  4. Step 4: Simplify right side
    55,779,813.90x = 4,667,081,458,077,949
  5. Step 5: Solve for x
    x = 4,667,081,458,077,949/55,779,813.90
  6. Step 6: Final answer
    x = 83,669,720.85

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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.