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Finding the Fourth Proportional to 160,530.90, 221,509 and 92,542.54

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Solution

The fourth proportional to 160,530.90, 221,509 and 92,542.54 is: 127,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,530.90 : 221,509 = 92,542.54 : x
  2. Step 2: Convert to fraction form
    160,530.90/221,509 = 92,542.54/x
  3. Step 3: Cross multiply
    160,530.90x = 221,509 × 92,542.54
  4. Step 4: Simplify right side
    160,530.90x = 20,499,005,492.86
  5. Step 5: Solve for x
    x = 20,499,005,492.86/160,530.90
  6. Step 6: Final answer
    x = 127,695.08

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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.