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Finding the Fourth Proportional to 111,801.76, 167,702.64 and 28,695.76

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Solution

The fourth proportional to 111,801.76, 167,702.64 and 28,695.76 is: 43,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,801.76 : 167,702.64 = 28,695.76 : x
  2. Step 2: Convert to fraction form
    111,801.76/167,702.64 = 28,695.76/x
  3. Step 3: Cross multiply
    111,801.76x = 167,702.64 × 28,695.76
  4. Step 4: Simplify right side
    111,801.76x = 4,812,354,708.81
  5. Step 5: Solve for x
    x = 4,812,354,708.81/111,801.76
  6. Step 6: Final answer
    x = 43,043.64

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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.