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Finding the Fourth Proportional to 118,594.61, 163,659.20 and 64,879.01

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Solution

The fourth proportional to 118,594.61, 163,659.20 and 64,879.01 is: 89,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,594.61 : 163,659.20 = 64,879.01 : x
  2. Step 2: Convert to fraction form
    118,594.61/163,659.20 = 64,879.01/x
  3. Step 3: Cross multiply
    118,594.61x = 163,659.20 × 64,879.01
  4. Step 4: Simplify right side
    118,594.61x = 10,618,045,730.70
  5. Step 5: Solve for x
    x = 10,618,045,730.70/118,594.61
  6. Step 6: Final answer
    x = 89,532.28

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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.