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Finding the Fourth Proportional to 160,449.68, 221,478.72 and 93,381.68

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Solution

The fourth proportional to 160,449.68, 221,478.72 and 93,381.68 is: 128,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,449.68 : 221,478.72 = 93,381.68 : x
  2. Step 2: Convert to fraction form
    160,449.68/221,478.72 = 93,381.68/x
  3. Step 3: Cross multiply
    160,449.68x = 221,478.72 × 93,381.68
  4. Step 4: Simplify right side
    160,449.68x = 20,682,054,957.85
  5. Step 5: Solve for x
    x = 20,682,054,957.85/160,449.68
  6. Step 6: Final answer
    x = 128,900.57

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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.