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Finding the Fourth Proportional to 160,989.80, 241,311.90 and 61,111.40

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Solution

The fourth proportional to 160,989.80, 241,311.90 and 61,111.40 is: 91,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,989.80 : 241,311.90 = 61,111.40 : x
  2. Step 2: Convert to fraction form
    160,989.80/241,311.90 = 61,111.40/x
  3. Step 3: Cross multiply
    160,989.80x = 241,311.90 × 61,111.40
  4. Step 4: Simplify right side
    160,989.80x = 14,746,908,045.66
  5. Step 5: Solve for x
    x = 14,746,908,045.66/160,989.80
  6. Step 6: Final answer
    x = 91,601.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.