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Finding the Fourth Proportional to 75,783.92, 104,579.55 and 41,792.40

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Solution

The fourth proportional to 75,783.92, 104,579.55 and 41,792.40 is: 57,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.92 : 104,579.55 = 41,792.40 : x
  2. Step 2: Convert to fraction form
    75,783.92/104,579.55 = 41,792.40/x
  3. Step 3: Cross multiply
    75,783.92x = 104,579.55 × 41,792.40
  4. Step 4: Simplify right side
    75,783.92x = 4,370,630,385.42
  5. Step 5: Solve for x
    x = 4,370,630,385.42/75,783.92
  6. Step 6: Final answer
    x = 57,672.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.