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Finding the Fourth Proportional to 352,548.02, 528,709.72 and 115,835.78

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Solution

The fourth proportional to 352,548.02, 528,709.72 and 115,835.78 is: 173,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,548.02 : 528,709.72 = 115,835.78 : x
  2. Step 2: Convert to fraction form
    352,548.02/528,709.72 = 115,835.78/x
  3. Step 3: Cross multiply
    352,548.02x = 528,709.72 × 115,835.78
  4. Step 4: Simplify right side
    352,548.02x = 61,243,502,809.78
  5. Step 5: Solve for x
    x = 61,243,502,809.78/352,548.02
  6. Step 6: Final answer
    x = 173,716.77

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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.