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Finding the Fourth Proportional to 352,598.85, 528,774.30 and 127,921.05

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Solution

The fourth proportional to 352,598.85, 528,774.30 and 127,921.05 is: 191,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,598.85 : 528,774.30 = 127,921.05 : x
  2. Step 2: Convert to fraction form
    352,598.85/528,774.30 = 127,921.05/x
  3. Step 3: Cross multiply
    352,598.85x = 528,774.30 × 127,921.05
  4. Step 4: Simplify right side
    352,598.85x = 67,641,363,669.02
  5. Step 5: Solve for x
    x = 67,641,363,669.02/352,598.85
  6. Step 6: Final answer
    x = 191,836.60

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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.