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Finding the Fourth Proportional to 117,265.60, 175,917.08 and 42,378.16

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Solution

The fourth proportional to 117,265.60, 175,917.08 and 42,378.16 is: 63,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,265.60 : 175,917.08 = 42,378.16 : x
  2. Step 2: Convert to fraction form
    117,265.60/175,917.08 = 42,378.16/x
  3. Step 3: Cross multiply
    117,265.60x = 175,917.08 × 42,378.16
  4. Step 4: Simplify right side
    117,265.60x = 7,455,042,162.97
  5. Step 5: Solve for x
    x = 7,455,042,162.97/117,265.60
  6. Step 6: Final answer
    x = 63,573.99

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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.