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Finding the Fourth Proportional to 352,054.10, 528,081.15 and 194,590.10

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Solution

The fourth proportional to 352,054.10, 528,081.15 and 194,590.10 is: 291,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,054.10 : 528,081.15 = 194,590.10 : x
  2. Step 2: Convert to fraction form
    352,054.10/528,081.15 = 194,590.10/x
  3. Step 3: Cross multiply
    352,054.10x = 528,081.15 × 194,590.10
  4. Step 4: Simplify right side
    352,054.10x = 102,759,363,786.62
  5. Step 5: Solve for x
    x = 102,759,363,786.62/352,054.10
  6. Step 6: Final answer
    x = 291,885.15

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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.