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Finding the Fourth Proportional to 119,758,511.80, 179,637,767.70 and 119,758,511.80

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Solution

The fourth proportional to 119,758,511.80, 179,637,767.70 and 119,758,511.80 is: 179,637,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,758,511.80 : 179,637,767.70 = 119,758,511.80 : x
  2. Step 2: Convert to fraction form
    119,758,511.80/179,637,767.70 = 119,758,511.80/x
  3. Step 3: Cross multiply
    119,758,511.80x = 179,637,767.70 × 119,758,511.80
  4. Step 4: Simplify right side
    119,758,511.80x = 21,513,151,722,826,108
  5. Step 5: Solve for x
    x = 21,513,151,722,826,108/119,758,511.80
  6. Step 6: Final answer
    x = 179,637,767.70

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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.