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Finding the Fourth Proportional to 353,389.32, 529,970.94 and 116,687.88

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Solution

The fourth proportional to 353,389.32, 529,970.94 and 116,687.88 is: 174,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,389.32 : 529,970.94 = 116,687.88 : x
  2. Step 2: Convert to fraction form
    353,389.32/529,970.94 = 116,687.88/x
  3. Step 3: Cross multiply
    353,389.32x = 529,970.94 × 116,687.88
  4. Step 4: Simplify right side
    353,389.32x = 61,841,185,450.21
  5. Step 5: Solve for x
    x = 61,841,185,450.21/353,389.32
  6. Step 6: Final answer
    x = 174,994.49

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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.