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Finding the Fourth Proportional to 145,158,220.80, 217,737,334.80 and 145,158,220.80

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Solution

The fourth proportional to 145,158,220.80, 217,737,334.80 and 145,158,220.80 is: 217,737,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158,220.80 : 217,737,334.80 = 145,158,220.80 : x
  2. Step 2: Convert to fraction form
    145,158,220.80/217,737,334.80 = 145,158,220.80/x
  3. Step 3: Cross multiply
    145,158,220.80x = 217,737,334.80 × 145,158,220.80
  4. Step 4: Simplify right side
    145,158,220.80x = 31,606,364,121,301,928
  5. Step 5: Solve for x
    x = 31,606,364,121,301,928/145,158,220.80
  6. Step 6: Final answer
    x = 217,737,334.80

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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.