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Finding the Fourth Proportional to 161,493,345.80, 242,240,018.70 and 161,493,345.80

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Solution

The fourth proportional to 161,493,345.80, 242,240,018.70 and 161,493,345.80 is: 242,240,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,493,345.80 : 242,240,018.70 = 161,493,345.80 : x
  2. Step 2: Convert to fraction form
    161,493,345.80/242,240,018.70 = 161,493,345.80/x
  3. Step 3: Cross multiply
    161,493,345.80x = 242,240,018.70 × 161,493,345.80
  4. Step 4: Simplify right side
    161,493,345.80x = 39,120,151,106,517,568
  5. Step 5: Solve for x
    x = 39,120,151,106,517,568/161,493,345.80
  6. Step 6: Final answer
    x = 242,240,018.70

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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.