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Finding the Fourth Proportional to 207,123.69, 285,827.97 and 116,479.63

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Solution

The fourth proportional to 207,123.69, 285,827.97 and 116,479.63 is: 160,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,123.69 : 285,827.97 = 116,479.63 : x
  2. Step 2: Convert to fraction form
    207,123.69/285,827.97 = 116,479.63/x
  3. Step 3: Cross multiply
    207,123.69x = 285,827.97 × 116,479.63
  4. Step 4: Simplify right side
    207,123.69x = 33,293,136,189.25
  5. Step 5: Solve for x
    x = 33,293,136,189.25/207,123.69
  6. Step 6: Final answer
    x = 160,740.36

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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.