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Finding the Fourth Proportional to 348,389.60, 522,801.22 and 188,399.10

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Solution

The fourth proportional to 348,389.60, 522,801.22 and 188,399.10 is: 282,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,389.60 : 522,801.22 = 188,399.10 : x
  2. Step 2: Convert to fraction form
    348,389.60/522,801.22 = 188,399.10/x
  3. Step 3: Cross multiply
    348,389.60x = 522,801.22 × 188,399.10
  4. Step 4: Simplify right side
    348,389.60x = 98,495,279,326.90
  5. Step 5: Solve for x
    x = 98,495,279,326.90/348,389.60
  6. Step 6: Final answer
    x = 282,715.90

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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.