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Finding the Fourth Proportional to 554,935.81, 832,404.12 and 134,212.09

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Solution

The fourth proportional to 554,935.81, 832,404.12 and 134,212.09 is: 201,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,935.81 : 832,404.12 = 134,212.09 : x
  2. Step 2: Convert to fraction form
    554,935.81/832,404.12 = 134,212.09/x
  3. Step 3: Cross multiply
    554,935.81x = 832,404.12 × 134,212.09
  4. Step 4: Simplify right side
    554,935.81x = 111,718,696,669.81
  5. Step 5: Solve for x
    x = 111,718,696,669.81/554,935.81
  6. Step 6: Final answer
    x = 201,318.23

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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.