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Finding the Fourth Proportional to 303,527.35, 455,345.70 and 126,052.30

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Solution

The fourth proportional to 303,527.35, 455,345.70 and 126,052.30 is: 189,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,527.35 : 455,345.70 = 126,052.30 : x
  2. Step 2: Convert to fraction form
    303,527.35/455,345.70 = 126,052.30/x
  3. Step 3: Cross multiply
    303,527.35x = 455,345.70 × 126,052.30
  4. Step 4: Simplify right side
    303,527.35x = 57,397,372,780.11
  5. Step 5: Solve for x
    x = 57,397,372,780.11/303,527.35
  6. Step 6: Final answer
    x = 189,101.16

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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.