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Finding the Fourth Proportional to 353,176.90, 529,765.34 and 103,858.90

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Solution

The fourth proportional to 353,176.90, 529,765.34 and 103,858.90 is: 155,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,176.90 : 529,765.34 = 103,858.90 : x
  2. Step 2: Convert to fraction form
    353,176.90/529,765.34 = 103,858.90/x
  3. Step 3: Cross multiply
    353,176.90x = 529,765.34 × 103,858.90
  4. Step 4: Simplify right side
    353,176.90x = 55,020,845,470.53
  5. Step 5: Solve for x
    x = 55,020,845,470.53/353,176.90
  6. Step 6: Final answer
    x = 155,788.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.