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Finding the Fourth Proportional to 315,169.92, 472,746.24 and 104,811.84

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Solution

The fourth proportional to 315,169.92, 472,746.24 and 104,811.84 is: 157,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,169.92 : 472,746.24 = 104,811.84 : x
  2. Step 2: Convert to fraction form
    315,169.92/472,746.24 = 104,811.84/x
  3. Step 3: Cross multiply
    315,169.92x = 472,746.24 × 104,811.84
  4. Step 4: Simplify right side
    315,169.92x = 49,549,403,267.48
  5. Step 5: Solve for x
    x = 49,549,403,267.48/315,169.92
  6. Step 6: Final answer
    x = 157,214.89

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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.