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Finding the Fourth Proportional to 371,325.76, 557,018.07 and 105,087.94

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Solution

The fourth proportional to 371,325.76, 557,018.07 and 105,087.94 is: 157,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,325.76 : 557,018.07 = 105,087.94 : x
  2. Step 2: Convert to fraction form
    371,325.76/557,018.07 = 105,087.94/x
  3. Step 3: Cross multiply
    371,325.76x = 557,018.07 × 105,087.94
  4. Step 4: Simplify right side
    371,325.76x = 58,535,881,519.08
  5. Step 5: Solve for x
    x = 58,535,881,519.08/371,325.76
  6. Step 6: Final answer
    x = 157,640.24

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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.