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Finding the Fourth Proportional to 143,804,572.03, 215,706,858.04 and 99,801,257.23

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Solution

The fourth proportional to 143,804,572.03, 215,706,858.04 and 99,801,257.23 is: 149,701,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,804,572.03 : 215,706,858.04 = 99,801,257.23 : x
  2. Step 2: Convert to fraction form
    143,804,572.03/215,706,858.04 = 99,801,257.23/x
  3. Step 3: Cross multiply
    143,804,572.03x = 215,706,858.04 × 99,801,257.23
  4. Step 4: Simplify right side
    143,804,572.03x = 21,527,815,625,525,132
  5. Step 5: Solve for x
    x = 21,527,815,625,525,132/143,804,572.03
  6. Step 6: Final answer
    x = 149,701,885.84

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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.