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Finding the Fourth Proportional to 112,259.25, 154,917.97 and 61,958.25

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Solution

The fourth proportional to 112,259.25, 154,917.97 and 61,958.25 is: 85,502.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,259.25 : 154,917.97 = 61,958.25 : x
  2. Step 2: Convert to fraction form
    112,259.25/154,917.97 = 61,958.25/x
  3. Step 3: Cross multiply
    112,259.25x = 154,917.97 × 61,958.25
  4. Step 4: Simplify right side
    112,259.25x = 9,598,446,159.86
  5. Step 5: Solve for x
    x = 9,598,446,159.86/112,259.25
  6. Step 6: Final answer
    x = 85,502.50

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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.