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Finding the Fourth Proportional to 173,356.57, 239,214.25 and 118,955.40

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Solution

The fourth proportional to 173,356.57, 239,214.25 and 118,955.40 is: 164,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,356.57 : 239,214.25 = 118,955.40 : x
  2. Step 2: Convert to fraction form
    173,356.57/239,214.25 = 118,955.40/x
  3. Step 3: Cross multiply
    173,356.57x = 239,214.25 × 118,955.40
  4. Step 4: Simplify right side
    173,356.57x = 28,455,826,722.55
  5. Step 5: Solve for x
    x = 28,455,826,722.55/173,356.57
  6. Step 6: Final answer
    x = 164,146.22

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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.