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Finding the Fourth Proportional to 70,326.96, 97,051.31 and 38,497.87

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Solution

The fourth proportional to 70,326.96, 97,051.31 and 38,497.87 is: 53,127.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,326.96 : 97,051.31 = 38,497.87 : x
  2. Step 2: Convert to fraction form
    70,326.96/97,051.31 = 38,497.87/x
  3. Step 3: Cross multiply
    70,326.96x = 97,051.31 × 38,497.87
  4. Step 4: Simplify right side
    70,326.96x = 3,736,268,523.22
  5. Step 5: Solve for x
    x = 3,736,268,523.22/70,326.96
  6. Step 6: Final answer
    x = 53,127.12

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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.