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Finding the Fourth Proportional to 97,438.71, 134,406.93 and 59,178.81

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Solution

The fourth proportional to 97,438.71, 134,406.93 and 59,178.81 is: 81,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,438.71 : 134,406.93 = 59,178.81 : x
  2. Step 2: Convert to fraction form
    97,438.71/134,406.93 = 59,178.81/x
  3. Step 3: Cross multiply
    97,438.71x = 134,406.93 × 59,178.81
  4. Step 4: Simplify right side
    97,438.71x = 7,954,042,173.15
  5. Step 5: Solve for x
    x = 7,954,042,173.15/97,438.71
  6. Step 6: Final answer
    x = 81,631.23

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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.