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Finding the Fourth Proportional to 228,770.55, 343,210.16 and 79,012.08

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Solution

The fourth proportional to 228,770.55, 343,210.16 and 79,012.08 is: 118,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,770.55 : 343,210.16 = 79,012.08 : x
  2. Step 2: Convert to fraction form
    228,770.55/343,210.16 = 79,012.08/x
  3. Step 3: Cross multiply
    228,770.55x = 343,210.16 × 79,012.08
  4. Step 4: Simplify right side
    228,770.55x = 27,117,748,816.26
  5. Step 5: Solve for x
    x = 27,117,748,816.26/228,770.55
  6. Step 6: Final answer
    x = 118,536.89

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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.