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Finding the Fourth Proportional to 352,902.13, 529,055.56 and 153,072

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Solution

The fourth proportional to 352,902.13, 529,055.56 and 153,072 is: 229,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,902.13 : 529,055.56 = 153,072 : x
  2. Step 2: Convert to fraction form
    352,902.13/529,055.56 = 153,072/x
  3. Step 3: Cross multiply
    352,902.13x = 529,055.56 × 153,072
  4. Step 4: Simplify right side
    352,902.13x = 80,983,592,680.32
  5. Step 5: Solve for x
    x = 80,983,592,680.32/352,902.13
  6. Step 6: Final answer
    x = 229,478.90

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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.