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Finding the Fourth Proportional to 224,846.85, 310,306.34 and 128,054.79

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Solution

The fourth proportional to 224,846.85, 310,306.34 and 128,054.79 is: 176,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,846.85 : 310,306.34 = 128,054.79 : x
  2. Step 2: Convert to fraction form
    224,846.85/310,306.34 = 128,054.79/x
  3. Step 3: Cross multiply
    224,846.85x = 310,306.34 × 128,054.79
  4. Step 4: Simplify right side
    224,846.85x = 39,736,213,204.37
  5. Step 5: Solve for x
    x = 39,736,213,204.37/224,846.85
  6. Step 6: Final answer
    x = 176,725.68

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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.