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Finding the Fourth Proportional to 102,718.59, 153,865.64 and 60,468.48

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Solution

The fourth proportional to 102,718.59, 153,865.64 and 60,468.48 is: 90,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,718.59 : 153,865.64 = 60,468.48 : x
  2. Step 2: Convert to fraction form
    102,718.59/153,865.64 = 60,468.48/x
  3. Step 3: Cross multiply
    102,718.59x = 153,865.64 × 60,468.48
  4. Step 4: Simplify right side
    102,718.59x = 9,304,021,072.68
  5. Step 5: Solve for x
    x = 9,304,021,072.68/102,718.59
  6. Step 6: Final answer
    x = 90,577.77

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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.