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Finding the Fourth Proportional to 348,706.98, 523,060.48 and 99,382.50

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Solution

The fourth proportional to 348,706.98, 523,060.48 and 99,382.50 is: 149,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,706.98 : 523,060.48 = 99,382.50 : x
  2. Step 2: Convert to fraction form
    348,706.98/523,060.48 = 99,382.50/x
  3. Step 3: Cross multiply
    348,706.98x = 523,060.48 × 99,382.50
  4. Step 4: Simplify right side
    348,706.98x = 51,983,058,153.60
  5. Step 5: Solve for x
    x = 51,983,058,153.60/348,706.98
  6. Step 6: Final answer
    x = 149,073.75

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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.