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Finding the Fourth Proportional to 352,102.40, 528,153.60 and 102,784.40

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Solution

The fourth proportional to 352,102.40, 528,153.60 and 102,784.40 is: 154,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,102.40 : 528,153.60 = 102,784.40 : x
  2. Step 2: Convert to fraction form
    352,102.40/528,153.60 = 102,784.40/x
  3. Step 3: Cross multiply
    352,102.40x = 528,153.60 × 102,784.40
  4. Step 4: Simplify right side
    352,102.40x = 54,285,950,883.84
  5. Step 5: Solve for x
    x = 54,285,950,883.84/352,102.40
  6. Step 6: Final answer
    x = 154,176.60

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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.