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Finding the Fourth Proportional to 286,668.40, 429,891.96 and 94,496.68

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Solution

The fourth proportional to 286,668.40, 429,891.96 and 94,496.68 is: 141,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,668.40 : 429,891.96 = 94,496.68 : x
  2. Step 2: Convert to fraction form
    286,668.40/429,891.96 = 94,496.68/x
  3. Step 3: Cross multiply
    286,668.40x = 429,891.96 × 94,496.68
  4. Step 4: Simplify right side
    286,668.40x = 40,623,362,978.69
  5. Step 5: Solve for x
    x = 40,623,362,978.69/286,668.40
  6. Step 6: Final answer
    x = 141,708.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.