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Finding the Fourth Proportional to 236,880, 355,242.96 and 79,066.08

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Solution

The fourth proportional to 236,880, 355,242.96 and 79,066.08 is: 118,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,880 : 355,242.96 = 79,066.08 : x
  2. Step 2: Convert to fraction form
    236,880/355,242.96 = 79,066.08/x
  3. Step 3: Cross multiply
    236,880x = 355,242.96 × 79,066.08
  4. Step 4: Simplify right side
    236,880x = 28,087,668,294.80
  5. Step 5: Solve for x
    x = 28,087,668,294.80/236,880
  6. Step 6: Final answer
    x = 118,573.41

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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.