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Finding the Fourth Proportional to 348,537.69, 522,861.21 and 148,859.19

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Solution

The fourth proportional to 348,537.69, 522,861.21 and 148,859.19 is: 223,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,537.69 : 522,861.21 = 148,859.19 : x
  2. Step 2: Convert to fraction form
    348,537.69/522,861.21 = 148,859.19/x
  3. Step 3: Cross multiply
    348,537.69x = 522,861.21 × 148,859.19
  4. Step 4: Simplify right side
    348,537.69x = 77,832,696,203.02
  5. Step 5: Solve for x
    x = 77,832,696,203.02/348,537.69
  6. Step 6: Final answer
    x = 223,312.14

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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.