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Finding the Fourth Proportional to 306,580,123.80, 459,870,185.70 and 306,580,123.80

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Solution

The fourth proportional to 306,580,123.80, 459,870,185.70 and 306,580,123.80 is: 459,870,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,580,123.80 : 459,870,185.70 = 306,580,123.80 : x
  2. Step 2: Convert to fraction form
    306,580,123.80/459,870,185.70 = 306,580,123.80/x
  3. Step 3: Cross multiply
    306,580,123.80x = 459,870,185.70 × 306,580,123.80
  4. Step 4: Simplify right side
    306,580,123.80x = 140,987,058,463,834,992
  5. Step 5: Solve for x
    x = 140,987,058,463,834,992/306,580,123.80
  6. Step 6: Final answer
    x = 459,870,185.70

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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.