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Finding the Fourth Proportional to 97,178.80, 134,060.90 and 56,867.60

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Solution

The fourth proportional to 97,178.80, 134,060.90 and 56,867.60 is: 78,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,178.80 : 134,060.90 = 56,867.60 : x
  2. Step 2: Convert to fraction form
    97,178.80/134,060.90 = 56,867.60/x
  3. Step 3: Cross multiply
    97,178.80x = 134,060.90 × 56,867.60
  4. Step 4: Simplify right side
    97,178.80x = 7,623,721,352.50
  5. Step 5: Solve for x
    x = 7,623,721,352.50/97,178.80
  6. Step 6: Final answer
    x = 78,450.46

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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.