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Finding the Fourth Proportional to 165,863.16, 228,879.72 and 93,276.90

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Solution

The fourth proportional to 165,863.16, 228,879.72 and 93,276.90 is: 128,715.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,863.16 : 228,879.72 = 93,276.90 : x
  2. Step 2: Convert to fraction form
    165,863.16/228,879.72 = 93,276.90/x
  3. Step 3: Cross multiply
    165,863.16x = 228,879.72 × 93,276.90
  4. Step 4: Simplify right side
    165,863.16x = 21,349,190,754.47
  5. Step 5: Solve for x
    x = 21,349,190,754.47/165,863.16
  6. Step 6: Final answer
    x = 128,715.69

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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.