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Finding the Fourth Proportional to 159,830.76, 239,853.02 and 66,336.52

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Solution

The fourth proportional to 159,830.76, 239,853.02 and 66,336.52 is: 99,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,830.76 : 239,853.02 = 66,336.52 : x
  2. Step 2: Convert to fraction form
    159,830.76/239,853.02 = 66,336.52/x
  3. Step 3: Cross multiply
    159,830.76x = 239,853.02 × 66,336.52
  4. Step 4: Simplify right side
    159,830.76x = 15,911,014,658.29
  5. Step 5: Solve for x
    x = 15,911,014,658.29/159,830.76
  6. Step 6: Final answer
    x = 99,549.14

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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.