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Finding the Fourth Proportional to 61,103,978.60, 84,325,088.60 and 33,228,319.11

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Solution

The fourth proportional to 61,103,978.60, 84,325,088.60 and 33,228,319.11 is: 45,855,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,103,978.60 : 84,325,088.60 = 33,228,319.11 : x
  2. Step 2: Convert to fraction form
    61,103,978.60/84,325,088.60 = 33,228,319.11/x
  3. Step 3: Cross multiply
    61,103,978.60x = 84,325,088.60 × 33,228,319.11
  4. Step 4: Simplify right side
    61,103,978.60x = 2,801,980,952,813,681.50
  5. Step 5: Solve for x
    x = 2,801,980,952,813,681.50/61,103,978.60
  6. Step 6: Final answer
    x = 45,855,949.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.