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Finding the Fourth Proportional to 348,584.80, 522,866.40 and 99,266.80

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Solution

The fourth proportional to 348,584.80, 522,866.40 and 99,266.80 is: 148,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,584.80 : 522,866.40 = 99,266.80 : x
  2. Step 2: Convert to fraction form
    348,584.80/522,866.40 = 99,266.80/x
  3. Step 3: Cross multiply
    348,584.80x = 522,866.40 × 99,266.80
  4. Step 4: Simplify right side
    348,584.80x = 51,903,274,355.52
  5. Step 5: Solve for x
    x = 51,903,274,355.52/348,584.80
  6. Step 6: Final answer
    x = 148,897.12

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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.