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Finding the Fourth Proportional to 117,612.88, 176,392.72 and 54,398.32

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Solution

The fourth proportional to 117,612.88, 176,392.72 and 54,398.32 is: 81,585.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,612.88 : 176,392.72 = 54,398.32 : x
  2. Step 2: Convert to fraction form
    117,612.88/176,392.72 = 54,398.32/x
  3. Step 3: Cross multiply
    117,612.88x = 176,392.72 × 54,398.32
  4. Step 4: Simplify right side
    117,612.88x = 9,595,467,051.25
  5. Step 5: Solve for x
    x = 9,595,467,051.25/117,612.88
  6. Step 6: Final answer
    x = 81,585.17

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1.5x scale

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.