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Finding the Fourth Proportional to 117,802.72, 176,760.84 and 58,643.60

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Solution

The fourth proportional to 117,802.72, 176,760.84 and 58,643.60 is: 87,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,802.72 : 176,760.84 = 58,643.60 : x
  2. Step 2: Convert to fraction form
    117,802.72/176,760.84 = 58,643.60/x
  3. Step 3: Cross multiply
    117,802.72x = 176,760.84 × 58,643.60
  4. Step 4: Simplify right side
    117,802.72x = 10,365,891,996.62
  5. Step 5: Solve for x
    x = 10,365,891,996.62/117,802.72
  6. Step 6: Final answer
    x = 87,993.66

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1.5x scale

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.