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Finding the Fourth Proportional to 118,555.01, 177,832.08 and 42,653.39

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Solution

The fourth proportional to 118,555.01, 177,832.08 and 42,653.39 is: 63,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,555.01 : 177,832.08 = 42,653.39 : x
  2. Step 2: Convert to fraction form
    118,555.01/177,832.08 = 42,653.39/x
  3. Step 3: Cross multiply
    118,555.01x = 177,832.08 × 42,653.39
  4. Step 4: Simplify right side
    118,555.01x = 7,585,140,173.59
  5. Step 5: Solve for x
    x = 7,585,140,173.59/118,555.01
  6. Step 6: Final answer
    x = 63,979.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.