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Finding the Fourth Proportional to 254,313.32, 350,842.74 and 153,653

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Solution

The fourth proportional to 254,313.32, 350,842.74 and 153,653 is: 211,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,313.32 : 350,842.74 = 153,653 : x
  2. Step 2: Convert to fraction form
    254,313.32/350,842.74 = 153,653/x
  3. Step 3: Cross multiply
    254,313.32x = 350,842.74 × 153,653
  4. Step 4: Simplify right side
    254,313.32x = 53,908,039,529.22
  5. Step 5: Solve for x
    x = 53,908,039,529.22/254,313.32
  6. Step 6: Final answer
    x = 211,974.90

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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.