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Finding the Fourth Proportional to 368,145,145.80, 552,217,718.70 and 368,145,145.80

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Solution

The fourth proportional to 368,145,145.80, 552,217,718.70 and 368,145,145.80 is: 552,217,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,145,145.80 : 552,217,718.70 = 368,145,145.80 : x
  2. Step 2: Convert to fraction form
    368,145,145.80/552,217,718.70 = 368,145,145.80/x
  3. Step 3: Cross multiply
    368,145,145.80x = 552,217,718.70 × 368,145,145.80
  4. Step 4: Simplify right side
    368,145,145.80x = 203,296,272,564,154,912
  5. Step 5: Solve for x
    x = 203,296,272,564,154,912/368,145,145.80
  6. Step 6: Final answer
    x = 552,217,718.70

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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.