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Finding the Fourth Proportional to 426,925.56, 640,405.62 and 160,658.04

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Solution

The fourth proportional to 426,925.56, 640,405.62 and 160,658.04 is: 240,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,925.56 : 640,405.62 = 160,658.04 : x
  2. Step 2: Convert to fraction form
    426,925.56/640,405.62 = 160,658.04/x
  3. Step 3: Cross multiply
    426,925.56x = 640,405.62 × 160,658.04
  4. Step 4: Simplify right side
    426,925.56x = 102,886,311,714.19
  5. Step 5: Solve for x
    x = 102,886,311,714.19/426,925.56
  6. Step 6: Final answer
    x = 240,993.56

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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.