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Finding the Fourth Proportional to 160,241.98, 221,124.94 and 87,630.42

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Solution

The fourth proportional to 160,241.98, 221,124.94 and 87,630.42 is: 120,925.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,241.98 : 221,124.94 = 87,630.42 : x
  2. Step 2: Convert to fraction form
    160,241.98/221,124.94 = 87,630.42/x
  3. Step 3: Cross multiply
    160,241.98x = 221,124.94 × 87,630.42
  4. Step 4: Simplify right side
    160,241.98x = 19,377,271,974.82
  5. Step 5: Solve for x
    x = 19,377,271,974.82/160,241.98
  6. Step 6: Final answer
    x = 120,925.07

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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.