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Finding the Fourth Proportional to 371,601.92, 557,424.06 and 105,341.50

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Solution

The fourth proportional to 371,601.92, 557,424.06 and 105,341.50 is: 158,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,601.92 : 557,424.06 = 105,341.50 : x
  2. Step 2: Convert to fraction form
    371,601.92/557,424.06 = 105,341.50/x
  3. Step 3: Cross multiply
    371,601.92x = 557,424.06 × 105,341.50
  4. Step 4: Simplify right side
    371,601.92x = 58,719,886,616.49
  5. Step 5: Solve for x
    x = 58,719,886,616.49/371,601.92
  6. Step 6: Final answer
    x = 158,018.25

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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.