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Finding the Fourth Proportional to 144,699,722.60, 217,049,583.90 and 98,783,220.20

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Solution

The fourth proportional to 144,699,722.60, 217,049,583.90 and 98,783,220.20 is: 148,174,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,699,722.60 : 217,049,583.90 = 98,783,220.20 : x
  2. Step 2: Convert to fraction form
    144,699,722.60/217,049,583.90 = 98,783,220.20/x
  3. Step 3: Cross multiply
    144,699,722.60x = 217,049,583.90 × 98,783,220.20
  4. Step 4: Simplify right side
    144,699,722.60x = 21,440,856,840,712,076
  5. Step 5: Solve for x
    x = 21,440,856,840,712,076/144,699,722.60
  6. Step 6: Final answer
    x = 148,174,830.30

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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.