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Finding the Fourth Proportional to 101,424.30, 152,136.45 and 100,841.10

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Solution

The fourth proportional to 101,424.30, 152,136.45 and 100,841.10 is: 151,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,424.30 : 152,136.45 = 100,841.10 : x
  2. Step 2: Convert to fraction form
    101,424.30/152,136.45 = 100,841.10/x
  3. Step 3: Cross multiply
    101,424.30x = 152,136.45 × 100,841.10
  4. Step 4: Simplify right side
    101,424.30x = 15,341,606,968.10
  5. Step 5: Solve for x
    x = 15,341,606,968.10/101,424.30
  6. Step 6: Final answer
    x = 151,261.65

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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.