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Finding the Fourth Proportional to 229,415.20, 316,643.57 and 127,475.69

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Solution

The fourth proportional to 229,415.20, 316,643.57 and 127,475.69 is: 175,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,415.20 : 316,643.57 = 127,475.69 : x
  2. Step 2: Convert to fraction form
    229,415.20/316,643.57 = 127,475.69/x
  3. Step 3: Cross multiply
    229,415.20x = 316,643.57 × 127,475.69
  4. Step 4: Simplify right side
    229,415.20x = 40,364,356,305.28
  5. Step 5: Solve for x
    x = 40,364,356,305.28/229,415.20
  6. Step 6: Final answer
    x = 175,944.56

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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.