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Finding the Fourth Proportional to 160,460.03, 221,438.22 and 87,865.98

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Solution

The fourth proportional to 160,460.03, 221,438.22 and 87,865.98 is: 121,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,460.03 : 221,438.22 = 87,865.98 : x
  2. Step 2: Convert to fraction form
    160,460.03/221,438.22 = 87,865.98/x
  3. Step 3: Cross multiply
    160,460.03x = 221,438.22 × 87,865.98
  4. Step 4: Simplify right side
    160,460.03x = 19,456,885,102.56
  5. Step 5: Solve for x
    x = 19,456,885,102.56/160,460.03
  6. Step 6: Final answer
    x = 121,256.90

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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.