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Finding the Fourth Proportional to 173,415.84, 239,286.03 and 105,396.48

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Solution

The fourth proportional to 173,415.84, 239,286.03 and 105,396.48 is: 145,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,415.84 : 239,286.03 = 105,396.48 : x
  2. Step 2: Convert to fraction form
    173,415.84/239,286.03 = 105,396.48/x
  3. Step 3: Cross multiply
    173,415.84x = 239,286.03 × 105,396.48
  4. Step 4: Simplify right side
    173,415.84x = 25,219,905,275.17
  5. Step 5: Solve for x
    x = 25,219,905,275.17/173,415.84
  6. Step 6: Final answer
    x = 145,430.23

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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.