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Finding the Fourth Proportional to 315,178.56, 472,845.60 and 104,818.32

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Solution

The fourth proportional to 315,178.56, 472,845.60 and 104,818.32 is: 157,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,178.56 : 472,845.60 = 104,818.32 : x
  2. Step 2: Convert to fraction form
    315,178.56/472,845.60 = 104,818.32/x
  3. Step 3: Cross multiply
    315,178.56x = 472,845.60 × 104,818.32
  4. Step 4: Simplify right side
    315,178.56x = 49,562,881,411.39
  5. Step 5: Solve for x
    x = 49,562,881,411.39/315,178.56
  6. Step 6: Final answer
    x = 157,253.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.