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Finding the Fourth Proportional to 157,155.36, 216,856.64 and 92,620.40

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Solution

The fourth proportional to 157,155.36, 216,856.64 and 92,620.40 is: 127,805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,155.36 : 216,856.64 = 92,620.40 : x
  2. Step 2: Convert to fraction form
    157,155.36/216,856.64 = 92,620.40/x
  3. Step 3: Cross multiply
    157,155.36x = 216,856.64 × 92,620.40
  4. Step 4: Simplify right side
    157,155.36x = 20,085,348,739.46
  5. Step 5: Solve for x
    x = 20,085,348,739.46/157,155.36
  6. Step 6: Final answer
    x = 127,805.69

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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.