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Finding the Fourth Proportional to 144,581,094.80, 217,039,603.80 and 87,138,227.60

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Solution

The fourth proportional to 144,581,094.80, 217,039,603.80 and 87,138,227.60 is: 130,808,570.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,581,094.80 : 217,039,603.80 = 87,138,227.60 : x
  2. Step 2: Convert to fraction form
    144,581,094.80/217,039,603.80 = 87,138,227.60/x
  3. Step 3: Cross multiply
    144,581,094.80x = 217,039,603.80 × 87,138,227.60
  4. Step 4: Simplify right side
    144,581,094.80x = 18,912,446,394,138,224
  5. Step 5: Solve for x
    x = 18,912,446,394,138,224/144,581,094.80
  6. Step 6: Final answer
    x = 130,808,570.93

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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.