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Finding the Fourth Proportional to 70,406.34, 97,173.18 and 42,111.96

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Solution

The fourth proportional to 70,406.34, 97,173.18 and 42,111.96 is: 58,121.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,406.34 : 97,173.18 = 42,111.96 : x
  2. Step 2: Convert to fraction form
    70,406.34/97,173.18 = 42,111.96/x
  3. Step 3: Cross multiply
    70,406.34x = 97,173.18 × 42,111.96
  4. Step 4: Simplify right side
    70,406.34x = 4,092,153,069.23
  5. Step 5: Solve for x
    x = 4,092,153,069.23/70,406.34
  6. Step 6: Final answer
    x = 58,121.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.