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Finding the Fourth Proportional to 143,802,605.70, 215,703,908.55 and 119,887,760.70

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Solution

The fourth proportional to 143,802,605.70, 215,703,908.55 and 119,887,760.70 is: 179,831,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,802,605.70 : 215,703,908.55 = 119,887,760.70 : x
  2. Step 2: Convert to fraction form
    143,802,605.70/215,703,908.55 = 119,887,760.70/x
  3. Step 3: Cross multiply
    143,802,605.70x = 215,703,908.55 × 119,887,760.70
  4. Step 4: Simplify right side
    143,802,605.70x = 25,860,258,570,297,088
  5. Step 5: Solve for x
    x = 25,860,258,570,297,088/143,802,605.70
  6. Step 6: Final answer
    x = 179,831,641.05

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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.