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Finding the Fourth Proportional to 348,753.18, 523,134.63 and 99,435.18

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Solution

The fourth proportional to 348,753.18, 523,134.63 and 99,435.18 is: 149,154.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,753.18 : 523,134.63 = 99,435.18 : x
  2. Step 2: Convert to fraction form
    348,753.18/523,134.63 = 99,435.18/x
  3. Step 3: Cross multiply
    348,753.18x = 523,134.63 × 99,435.18
  4. Step 4: Simplify right side
    348,753.18x = 52,017,986,098.28
  5. Step 5: Solve for x
    x = 52,017,986,098.28/348,753.18
  6. Step 6: Final answer
    x = 149,154.16

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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.