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Finding the Fourth Proportional to 97,443.96, 146,156.30 and 66,055.64

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Solution

The fourth proportional to 97,443.96, 146,156.30 and 66,055.64 is: 99,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,443.96 : 146,156.30 = 66,055.64 : x
  2. Step 2: Convert to fraction form
    97,443.96/146,156.30 = 66,055.64/x
  3. Step 3: Cross multiply
    97,443.96x = 146,156.30 × 66,055.64
  4. Step 4: Simplify right side
    97,443.96x = 9,654,447,936.53
  5. Step 5: Solve for x
    x = 9,654,447,936.53/97,443.96
  6. Step 6: Final answer
    x = 99,076.93

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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.