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Finding the Fourth Proportional to 70,376.56, 97,116.04 and 38,539.30

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Solution

The fourth proportional to 70,376.56, 97,116.04 and 38,539.30 is: 53,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376.56 : 97,116.04 = 38,539.30 : x
  2. Step 2: Convert to fraction form
    70,376.56/97,116.04 = 38,539.30/x
  3. Step 3: Cross multiply
    70,376.56x = 97,116.04 × 38,539.30
  4. Step 4: Simplify right side
    70,376.56x = 3,742,784,200.37
  5. Step 5: Solve for x
    x = 3,742,784,200.37/70,376.56
  6. Step 6: Final answer
    x = 53,182.26

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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.