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Finding the Fourth Proportional to 97,169.81, 134,127.90 and 56,896.52

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Solution

The fourth proportional to 97,169.81, 134,127.90 and 56,896.52 is: 78,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,169.81 : 134,127.90 = 56,896.52 : x
  2. Step 2: Convert to fraction form
    97,169.81/134,127.90 = 56,896.52/x
  3. Step 3: Cross multiply
    97,169.81x = 134,127.90 × 56,896.52
  4. Step 4: Simplify right side
    97,169.81x = 7,631,411,080.23
  5. Step 5: Solve for x
    x = 7,631,411,080.23/97,169.81
  6. Step 6: Final answer
    x = 78,536.85

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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.