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Finding the Fourth Proportional to 70,883,610.60, 106,165,983.60 and 42,185,796.60

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Solution

The fourth proportional to 70,883,610.60, 106,165,983.60 and 42,185,796.60 is: 63,183,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883,610.60 : 106,165,983.60 = 42,185,796.60 : x
  2. Step 2: Convert to fraction form
    70,883,610.60/106,165,983.60 = 42,185,796.60/x
  3. Step 3: Cross multiply
    70,883,610.60x = 106,165,983.60 × 42,185,796.60
  4. Step 4: Simplify right side
    70,883,610.60x = 4,478,696,589,988,535.50
  5. Step 5: Solve for x
    x = 4,478,696,589,988,535.50/70,883,610.60
  6. Step 6: Final answer
    x = 63,183,810.08

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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.