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Finding the Fourth Proportional to 348,522.75, 522,790.61 and 99,211.23

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Solution

The fourth proportional to 348,522.75, 522,790.61 and 99,211.23 is: 148,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,522.75 : 522,790.61 = 99,211.23 : x
  2. Step 2: Convert to fraction form
    348,522.75/522,790.61 = 99,211.23/x
  3. Step 3: Cross multiply
    348,522.75x = 522,790.61 × 99,211.23
  4. Step 4: Simplify right side
    348,522.75x = 51,866,698,954.49
  5. Step 5: Solve for x
    x = 51,866,698,954.49/348,522.75
  6. Step 6: Final answer
    x = 148,818.69

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1.5x scale

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.