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Finding the Fourth Proportional to 160,477.40, 221,456.22 and 88,857.20

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Solution

The fourth proportional to 160,477.40, 221,456.22 and 88,857.20 is: 122,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,477.40 : 221,456.22 = 88,857.20 : x
  2. Step 2: Convert to fraction form
    160,477.40/221,456.22 = 88,857.20/x
  3. Step 3: Cross multiply
    160,477.40x = 221,456.22 × 88,857.20
  4. Step 4: Simplify right side
    160,477.40x = 19,677,979,631.78
  5. Step 5: Solve for x
    x = 19,677,979,631.78/160,477.40
  6. Step 6: Final answer
    x = 122,621.50

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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.