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Finding the Fourth Proportional to 187,218,270.80, 280,323,521.40 and 187,218,270.80

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Solution

The fourth proportional to 187,218,270.80, 280,323,521.40 and 187,218,270.80 is: 280,323,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,218,270.80 : 280,323,521.40 = 187,218,270.80 : x
  2. Step 2: Convert to fraction form
    187,218,270.80/280,323,521.40 = 187,218,270.80/x
  3. Step 3: Cross multiply
    187,218,270.80x = 280,323,521.40 × 187,218,270.80
  4. Step 4: Simplify right side
    187,218,270.80x = 52,481,684,941,074,792
  5. Step 5: Solve for x
    x = 52,481,684,941,074,792/187,218,270.80
  6. Step 6: Final answer
    x = 280,323,521.40

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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.