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Finding the Fourth Proportional to 118,543.64, 177,815.60 and 48,422.93

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Solution

The fourth proportional to 118,543.64, 177,815.60 and 48,422.93 is: 72,634.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,543.64 : 177,815.60 = 48,422.93 : x
  2. Step 2: Convert to fraction form
    118,543.64/177,815.60 = 48,422.93/x
  3. Step 3: Cross multiply
    118,543.64x = 177,815.60 × 48,422.93
  4. Step 4: Simplify right side
    118,543.64x = 8,610,352,351.71
  5. Step 5: Solve for x
    x = 8,610,352,351.71/118,543.64
  6. Step 6: Final answer
    x = 72,634.45

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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.