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Finding the Fourth Proportional to 348,754.13, 523,136.06 and 99,436.13

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Solution

The fourth proportional to 348,754.13, 523,136.06 and 99,436.13 is: 149,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,754.13 : 523,136.06 = 99,436.13 : x
  2. Step 2: Convert to fraction form
    348,754.13/523,136.06 = 99,436.13/x
  3. Step 3: Cross multiply
    348,754.13x = 523,136.06 × 99,436.13
  4. Step 4: Simplify right side
    348,754.13x = 52,018,622,156.99
  5. Step 5: Solve for x
    x = 52,018,622,156.99/348,754.13
  6. Step 6: Final answer
    x = 149,155.58

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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.