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Finding the Fourth Proportional to 218,613.37, 301,707.96 and 127,963.84

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Solution

The fourth proportional to 218,613.37, 301,707.96 and 127,963.84 is: 176,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,613.37 : 301,707.96 = 127,963.84 : x
  2. Step 2: Convert to fraction form
    218,613.37/301,707.96 = 127,963.84/x
  3. Step 3: Cross multiply
    218,613.37x = 301,707.96 × 127,963.84
  4. Step 4: Simplify right side
    218,613.37x = 38,607,707,611.63
  5. Step 5: Solve for x
    x = 38,607,707,611.63/218,613.37
  6. Step 6: Final answer
    x = 176,602.69

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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.