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Finding the Fourth Proportional to 90,894.52, 125,432.94 and 53,175.16

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Solution

The fourth proportional to 90,894.52, 125,432.94 and 53,175.16 is: 73,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,894.52 : 125,432.94 = 53,175.16 : x
  2. Step 2: Convert to fraction form
    90,894.52/125,432.94 = 53,175.16/x
  3. Step 3: Cross multiply
    90,894.52x = 125,432.94 × 53,175.16
  4. Step 4: Simplify right side
    90,894.52x = 6,669,916,653.77
  5. Step 5: Solve for x
    x = 6,669,916,653.77/90,894.52
  6. Step 6: Final answer
    x = 73,380.84

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1.5x scale

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.