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Finding the Fourth Proportional to 160,401.71, 221,409.72 and 92,445.79

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Solution

The fourth proportional to 160,401.71, 221,409.72 and 92,445.79 is: 127,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,401.71 : 221,409.72 = 92,445.79 : x
  2. Step 2: Convert to fraction form
    160,401.71/221,409.72 = 92,445.79/x
  3. Step 3: Cross multiply
    160,401.71x = 221,409.72 × 92,445.79
  4. Step 4: Simplify right side
    160,401.71x = 20,468,396,479.08
  5. Step 5: Solve for x
    x = 20,468,396,479.08/160,401.71
  6. Step 6: Final answer
    x = 127,607.10

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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.