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Finding the Fourth Proportional to 94,908.75, 130,970.41 and 56,674.72

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Solution

The fourth proportional to 94,908.75, 130,970.41 and 56,674.72 is: 78,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,908.75 : 130,970.41 = 56,674.72 : x
  2. Step 2: Convert to fraction form
    94,908.75/130,970.41 = 56,674.72/x
  3. Step 3: Cross multiply
    94,908.75x = 130,970.41 × 56,674.72
  4. Step 4: Simplify right side
    94,908.75x = 7,422,711,315.04
  5. Step 5: Solve for x
    x = 7,422,711,315.04/94,908.75
  6. Step 6: Final answer
    x = 78,208.93

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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.