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Finding the Fourth Proportional to 97,171.32, 134,129.97 and 56,898.03

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Solution

The fourth proportional to 97,171.32, 134,129.97 and 56,898.03 is: 78,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,171.32 : 134,129.97 = 56,898.03 : x
  2. Step 2: Convert to fraction form
    97,171.32/134,129.97 = 56,898.03/x
  3. Step 3: Cross multiply
    97,171.32x = 134,129.97 × 56,898.03
  4. Step 4: Simplify right side
    97,171.32x = 7,631,731,056.96
  5. Step 5: Solve for x
    x = 7,631,731,056.96/97,171.32
  6. Step 6: Final answer
    x = 78,538.93

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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.