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Finding the Fourth Proportional to 55,307,117.20, 82,811,376.60 and 55,307,117.20

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Solution

The fourth proportional to 55,307,117.20, 82,811,376.60 and 55,307,117.20 is: 82,811,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,307,117.20 : 82,811,376.60 = 55,307,117.20 : x
  2. Step 2: Convert to fraction form
    55,307,117.20/82,811,376.60 = 55,307,117.20/x
  3. Step 3: Cross multiply
    55,307,117.20x = 82,811,376.60 × 55,307,117.20
  4. Step 4: Simplify right side
    55,307,117.20x = 4,580,058,511,109,537
  5. Step 5: Solve for x
    x = 4,580,058,511,109,537/55,307,117.20
  6. Step 6: Final answer
    x = 82,811,376.60

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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.