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Finding the Fourth Proportional to 348,546.55, 522,809.02 and 99,228.55

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Solution

The fourth proportional to 348,546.55, 522,809.02 and 99,228.55 is: 148,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,546.55 : 522,809.02 = 99,228.55 : x
  2. Step 2: Convert to fraction form
    348,546.55/522,809.02 = 99,228.55/x
  3. Step 3: Cross multiply
    348,546.55x = 522,809.02 × 99,228.55
  4. Step 4: Simplify right side
    348,546.55x = 51,877,580,981.52
  5. Step 5: Solve for x
    x = 51,877,580,981.52/348,546.55
  6. Step 6: Final answer
    x = 148,839.75

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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.