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Finding the Fourth Proportional to 97,355.81, 134,351.03 and 52,643.81

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Solution

The fourth proportional to 97,355.81, 134,351.03 and 52,643.81 is: 72,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,355.81 : 134,351.03 = 52,643.81 : x
  2. Step 2: Convert to fraction form
    97,355.81/134,351.03 = 52,643.81/x
  3. Step 3: Cross multiply
    97,355.81x = 134,351.03 × 52,643.81
  4. Step 4: Simplify right side
    97,355.81x = 7,072,750,564.11
  5. Step 5: Solve for x
    x = 7,072,750,564.11/97,355.81
  6. Step 6: Final answer
    x = 72,648.47

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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.