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Finding the Fourth Proportional to 173,138.42, 238,931.26 and 97,693.94

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Solution

The fourth proportional to 173,138.42, 238,931.26 and 97,693.94 is: 134,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,138.42 : 238,931.26 = 97,693.94 : x
  2. Step 2: Convert to fraction form
    173,138.42/238,931.26 = 97,693.94/x
  3. Step 3: Cross multiply
    173,138.42x = 238,931.26 × 97,693.94
  4. Step 4: Simplify right side
    173,138.42x = 23,342,136,178.56
  5. Step 5: Solve for x
    x = 23,342,136,178.56/173,138.42
  6. Step 6: Final answer
    x = 134,817.77

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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.