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Finding the Fourth Proportional to 352,308.57, 528,461.42 and 127,616.42

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Solution

The fourth proportional to 352,308.57, 528,461.42 and 127,616.42 is: 191,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,308.57 : 528,461.42 = 127,616.42 : x
  2. Step 2: Convert to fraction form
    352,308.57/528,461.42 = 127,616.42/x
  3. Step 3: Cross multiply
    352,308.57x = 528,461.42 × 127,616.42
  4. Step 4: Simplify right side
    352,308.57x = 67,440,352,205.25
  5. Step 5: Solve for x
    x = 67,440,352,205.25/352,308.57
  6. Step 6: Final answer
    x = 191,424.10

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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.