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Finding the Fourth Proportional to 227,400,507.65, 313,813,646.01 and 122,978,578.92

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Solution

The fourth proportional to 227,400,507.65, 313,813,646.01 and 122,978,578.92 is: 169,710,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,400,507.65 : 313,813,646.01 = 122,978,578.92 : x
  2. Step 2: Convert to fraction form
    227,400,507.65/313,813,646.01 = 122,978,578.92/x
  3. Step 3: Cross multiply
    227,400,507.65x = 313,813,646.01 × 122,978,578.92
  4. Step 4: Simplify right side
    227,400,507.65x = 38,592,356,232,013,728
  5. Step 5: Solve for x
    x = 38,592,356,232,013,728/227,400,507.65
  6. Step 6: Final answer
    x = 169,710,950.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.