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Finding the Fourth Proportional to 160,657.72, 221,656.99 and 92,665.58

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Solution

The fourth proportional to 160,657.72, 221,656.99 and 92,665.58 is: 127,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,657.72 : 221,656.99 = 92,665.58 : x
  2. Step 2: Convert to fraction form
    160,657.72/221,656.99 = 92,665.58/x
  3. Step 3: Cross multiply
    160,657.72x = 221,656.99 × 92,665.58
  4. Step 4: Simplify right side
    160,657.72x = 20,539,972,373.20
  5. Step 5: Solve for x
    x = 20,539,972,373.20/160,657.72
  6. Step 6: Final answer
    x = 127,849.27

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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.