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Finding the Fourth Proportional to 112,415.52, 168,601.65 and 52,427.46

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Solution

The fourth proportional to 112,415.52, 168,601.65 and 52,427.46 is: 78,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.52 : 168,601.65 = 52,427.46 : x
  2. Step 2: Convert to fraction form
    112,415.52/168,601.65 = 52,427.46/x
  3. Step 3: Cross multiply
    112,415.52x = 168,601.65 × 52,427.46
  4. Step 4: Simplify right side
    112,415.52x = 8,839,356,261.31
  5. Step 5: Solve for x
    x = 8,839,356,261.31/112,415.52
  6. Step 6: Final answer
    x = 78,631.10

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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.