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Finding the Fourth Proportional to 160,725.78, 221,803.61 and 92,756.88

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Solution

The fourth proportional to 160,725.78, 221,803.61 and 92,756.88 is: 128,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,725.78 : 221,803.61 = 92,756.88 : x
  2. Step 2: Convert to fraction form
    160,725.78/221,803.61 = 92,756.88/x
  3. Step 3: Cross multiply
    160,725.78x = 221,803.61 × 92,756.88
  4. Step 4: Simplify right side
    160,725.78x = 20,573,810,372.55
  5. Step 5: Solve for x
    x = 20,573,810,372.55/160,725.78
  6. Step 6: Final answer
    x = 128,005.67

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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.