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Finding the Fourth Proportional to 97,681.59, 134,762.05 and 61,361.69

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Solution

The fourth proportional to 97,681.59, 134,762.05 and 61,361.69 is: 84,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,681.59 : 134,762.05 = 61,361.69 : x
  2. Step 2: Convert to fraction form
    97,681.59/134,762.05 = 61,361.69/x
  3. Step 3: Cross multiply
    97,681.59x = 134,762.05 × 61,361.69
  4. Step 4: Simplify right side
    97,681.59x = 8,269,227,135.86
  5. Step 5: Solve for x
    x = 8,269,227,135.86/97,681.59
  6. Step 6: Final answer
    x = 84,654.92

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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.