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Finding the Fourth Proportional to 253,183.66, 349,392.90 and 145,714.48

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Solution

The fourth proportional to 253,183.66, 349,392.90 and 145,714.48 is: 201,085.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,183.66 : 349,392.90 = 145,714.48 : x
  2. Step 2: Convert to fraction form
    253,183.66/349,392.90 = 145,714.48/x
  3. Step 3: Cross multiply
    253,183.66x = 349,392.90 × 145,714.48
  4. Step 4: Simplify right side
    253,183.66x = 50,911,604,739.19
  5. Step 5: Solve for x
    x = 50,911,604,739.19/253,183.66
  6. Step 6: Final answer
    x = 201,085.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.