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Finding the Fourth Proportional to 348,328.69, 522,580.82 and 99,010.69

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Solution

The fourth proportional to 348,328.69, 522,580.82 and 99,010.69 is: 148,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,328.69 : 522,580.82 = 99,010.69 : x
  2. Step 2: Convert to fraction form
    348,328.69/522,580.82 = 99,010.69/x
  3. Step 3: Cross multiply
    348,328.69x = 522,580.82 × 99,010.69
  4. Step 4: Simplify right side
    348,328.69x = 51,741,085,767.46
  5. Step 5: Solve for x
    x = 51,741,085,767.46/348,328.69
  6. Step 6: Final answer
    x = 148,540.98

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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.