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Finding the Fourth Proportional to 159,894,510.80, 239,841,766.20 and 148,415,385.20

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Solution

The fourth proportional to 159,894,510.80, 239,841,766.20 and 148,415,385.20 is: 222,623,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,894,510.80 : 239,841,766.20 = 148,415,385.20 : x
  2. Step 2: Convert to fraction form
    159,894,510.80/239,841,766.20 = 148,415,385.20/x
  3. Step 3: Cross multiply
    159,894,510.80x = 239,841,766.20 × 148,415,385.20
  4. Step 4: Simplify right side
    159,894,510.80x = 35,596,208,117,621,336
  5. Step 5: Solve for x
    x = 35,596,208,117,621,336/159,894,510.80
  6. Step 6: Final answer
    x = 222,623,077.80

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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.