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Finding the Fourth Proportional to 70,374.22, 97,113.81 and 38,543.38

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Solution

The fourth proportional to 70,374.22, 97,113.81 and 38,543.38 is: 53,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,374.22 : 97,113.81 = 38,543.38 : x
  2. Step 2: Convert to fraction form
    70,374.22/97,113.81 = 38,543.38/x
  3. Step 3: Cross multiply
    70,374.22x = 97,113.81 × 38,543.38
  4. Step 4: Simplify right side
    70,374.22x = 3,743,094,482.08
  5. Step 5: Solve for x
    x = 3,743,094,482.08/70,374.22
  6. Step 6: Final answer
    x = 53,188.43

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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.