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Finding the Fourth Proportional to 103,274.20, 154,908.10 and 29,402.20

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Solution

The fourth proportional to 103,274.20, 154,908.10 and 29,402.20 is: 44,102.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,274.20 : 154,908.10 = 29,402.20 : x
  2. Step 2: Convert to fraction form
    103,274.20/154,908.10 = 29,402.20/x
  3. Step 3: Cross multiply
    103,274.20x = 154,908.10 × 29,402.20
  4. Step 4: Simplify right side
    103,274.20x = 4,554,638,937.82
  5. Step 5: Solve for x
    x = 4,554,638,937.82/103,274.20
  6. Step 6: Final answer
    x = 44,102.39

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1.5x scale

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.