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Finding the Fourth Proportional to 97,171.82, 134,130.66 and 56,898.52

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Solution

The fourth proportional to 97,171.82, 134,130.66 and 56,898.52 is: 78,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,171.82 : 134,130.66 = 56,898.52 : x
  2. Step 2: Convert to fraction form
    97,171.82/134,130.66 = 56,898.52/x
  3. Step 3: Cross multiply
    97,171.82x = 134,130.66 × 56,898.52
  4. Step 4: Simplify right side
    97,171.82x = 7,631,836,040.62
  5. Step 5: Solve for x
    x = 7,631,836,040.62/97,171.82
  6. Step 6: Final answer
    x = 78,539.60

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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.