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Finding the Fourth Proportional to 102,758.93, 153,750.81 and 60,661.91

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Solution

The fourth proportional to 102,758.93, 153,750.81 and 60,661.91 is: 90,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,758.93 : 153,750.81 = 60,661.91 : x
  2. Step 2: Convert to fraction form
    102,758.93/153,750.81 = 60,661.91/x
  3. Step 3: Cross multiply
    102,758.93x = 153,750.81 × 60,661.91
  4. Step 4: Simplify right side
    102,758.93x = 9,326,818,069.28
  5. Step 5: Solve for x
    x = 9,326,818,069.28/102,758.93
  6. Step 6: Final answer
    x = 90,764.06

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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.