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Finding the Fourth Proportional to 353,159.87, 529,728.03 and 153,480.42

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Solution

The fourth proportional to 353,159.87, 529,728.03 and 153,480.42 is: 230,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,159.87 : 529,728.03 = 153,480.42 : x
  2. Step 2: Convert to fraction form
    353,159.87/529,728.03 = 153,480.42/x
  3. Step 3: Cross multiply
    353,159.87x = 529,728.03 × 153,480.42
  4. Step 4: Simplify right side
    353,159.87x = 81,302,880,530.17
  5. Step 5: Solve for x
    x = 81,302,880,530.17/353,159.87
  6. Step 6: Final answer
    x = 230,215.52

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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.