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Finding the Fourth Proportional to 118,299.56, 163,218.02 and 75,784.04

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Solution

The fourth proportional to 118,299.56, 163,218.02 and 75,784.04 is: 104,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,299.56 : 163,218.02 = 75,784.04 : x
  2. Step 2: Convert to fraction form
    118,299.56/163,218.02 = 75,784.04/x
  3. Step 3: Cross multiply
    118,299.56x = 163,218.02 × 75,784.04
  4. Step 4: Simplify right side
    118,299.56x = 12,369,320,956.40
  5. Step 5: Solve for x
    x = 12,369,320,956.40/118,299.56
  6. Step 6: Final answer
    x = 104,559.31

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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.