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Finding the Fourth Proportional to 315,154.48, 472,735.82 and 104,792.41

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Solution

The fourth proportional to 315,154.48, 472,735.82 and 104,792.41 is: 157,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,154.48 : 472,735.82 = 104,792.41 : x
  2. Step 2: Convert to fraction form
    315,154.48/472,735.82 = 104,792.41/x
  3. Step 3: Cross multiply
    315,154.48x = 472,735.82 × 104,792.41
  4. Step 4: Simplify right side
    315,154.48x = 49,539,125,347.16
  5. Step 5: Solve for x
    x = 49,539,125,347.16/315,154.48
  6. Step 6: Final answer
    x = 157,189.98

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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.