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Finding the Fourth Proportional to 168,003.72, 252,005.58 and 43,335

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Solution

The fourth proportional to 168,003.72, 252,005.58 and 43,335 is: 65,002.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,003.72 : 252,005.58 = 43,335 : x
  2. Step 2: Convert to fraction form
    168,003.72/252,005.58 = 43,335/x
  3. Step 3: Cross multiply
    168,003.72x = 252,005.58 × 43,335
  4. Step 4: Simplify right side
    168,003.72x = 10,920,661,809.30
  5. Step 5: Solve for x
    x = 10,920,661,809.30/168,003.72
  6. Step 6: Final answer
    x = 65,002.50

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1.5x scale

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.