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Finding the Fourth Proportional to 112,005.90, 168,057.45 and 56,601.90

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Solution

The fourth proportional to 112,005.90, 168,057.45 and 56,601.90 is: 84,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,005.90 : 168,057.45 = 56,601.90 : x
  2. Step 2: Convert to fraction form
    112,005.90/168,057.45 = 56,601.90/x
  3. Step 3: Cross multiply
    112,005.90x = 168,057.45 × 56,601.90
  4. Step 4: Simplify right side
    112,005.90x = 9,512,370,979.16
  5. Step 5: Solve for x
    x = 9,512,370,979.16/112,005.90
  6. Step 6: Final answer
    x = 84,927.41

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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.