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Finding the Fourth Proportional to 159,668.65, 239,522.07 and 64,878.58

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Solution

The fourth proportional to 159,668.65, 239,522.07 and 64,878.58 is: 97,325.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,668.65 : 239,522.07 = 64,878.58 : x
  2. Step 2: Convert to fraction form
    159,668.65/239,522.07 = 64,878.58/x
  3. Step 3: Cross multiply
    159,668.65x = 239,522.07 × 64,878.58
  4. Step 4: Simplify right side
    159,668.65x = 15,539,851,780.26
  5. Step 5: Solve for x
    x = 15,539,851,780.26/159,668.65
  6. Step 6: Final answer
    x = 97,325.63

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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.