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Finding the Fourth Proportional to 112,259.28, 154,917.04 and 61,958.28

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Solution

The fourth proportional to 112,259.28, 154,917.04 and 61,958.28 is: 85,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,259.28 : 154,917.04 = 61,958.28 : x
  2. Step 2: Convert to fraction form
    112,259.28/154,917.04 = 61,958.28/x
  3. Step 3: Cross multiply
    112,259.28x = 154,917.04 × 61,958.28
  4. Step 4: Simplify right side
    112,259.28x = 9,598,393,341.09
  5. Step 5: Solve for x
    x = 9,598,393,341.09/112,259.28
  6. Step 6: Final answer
    x = 85,502.00

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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.