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Finding the Fourth Proportional to 114,792.72, 158,560.92 and 87,771.12

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Solution

The fourth proportional to 114,792.72, 158,560.92 and 87,771.12 is: 121,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,792.72 : 158,560.92 = 87,771.12 : x
  2. Step 2: Convert to fraction form
    114,792.72/158,560.92 = 87,771.12/x
  3. Step 3: Cross multiply
    114,792.72x = 158,560.92 × 87,771.12
  4. Step 4: Simplify right side
    114,792.72x = 13,917,069,536.63
  5. Step 5: Solve for x
    x = 13,917,069,536.63/114,792.72
  6. Step 6: Final answer
    x = 121,236.52

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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.