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Finding the Fourth Proportional to 315,072.92, 472,451.70 and 104,637.08

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Solution

The fourth proportional to 315,072.92, 472,451.70 and 104,637.08 is: 156,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,072.92 : 472,451.70 = 104,637.08 : x
  2. Step 2: Convert to fraction form
    315,072.92/472,451.70 = 104,637.08/x
  3. Step 3: Cross multiply
    315,072.92x = 472,451.70 × 104,637.08
  4. Step 4: Simplify right side
    315,072.92x = 49,435,966,329.04
  5. Step 5: Solve for x
    x = 49,435,966,329.04/315,072.92
  6. Step 6: Final answer
    x = 156,903.25

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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.