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Finding the Fourth Proportional to 353,298.10, 529,947.15 and 153,714.10

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Solution

The fourth proportional to 353,298.10, 529,947.15 and 153,714.10 is: 230,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,298.10 : 529,947.15 = 153,714.10 : x
  2. Step 2: Convert to fraction form
    353,298.10/529,947.15 = 153,714.10/x
  3. Step 3: Cross multiply
    353,298.10x = 529,947.15 × 153,714.10
  4. Step 4: Simplify right side
    353,298.10x = 81,460,349,209.82
  5. Step 5: Solve for x
    x = 81,460,349,209.82/353,298.10
  6. Step 6: Final answer
    x = 230,571.15

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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.