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Finding the Fourth Proportional to 493,872.06, 740,730.86 and 156,868.36

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Solution

The fourth proportional to 493,872.06, 740,730.86 and 156,868.36 is: 235,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,872.06 : 740,730.86 = 156,868.36 : x
  2. Step 2: Convert to fraction form
    493,872.06/740,730.86 = 156,868.36/x
  3. Step 3: Cross multiply
    493,872.06x = 740,730.86 × 156,868.36
  4. Step 4: Simplify right side
    493,872.06x = 116,197,235,209.59
  5. Step 5: Solve for x
    x = 116,197,235,209.59/493,872.06
  6. Step 6: Final answer
    x = 235,278.01

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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.