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Finding the Fourth Proportional to 73,160.74, 109,738.61 and 31,013.70

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Solution

The fourth proportional to 73,160.74, 109,738.61 and 31,013.70 is: 46,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,160.74 : 109,738.61 = 31,013.70 : x
  2. Step 2: Convert to fraction form
    73,160.74/109,738.61 = 31,013.70/x
  3. Step 3: Cross multiply
    73,160.74x = 109,738.61 × 31,013.70
  4. Step 4: Simplify right side
    73,160.74x = 3,403,400,670.40
  5. Step 5: Solve for x
    x = 3,403,400,670.40/73,160.74
  6. Step 6: Final answer
    x = 46,519.50

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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.