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Finding the Fourth Proportional to 103,274.60, 154,911.90 and 97,053.80

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Solution

The fourth proportional to 103,274.60, 154,911.90 and 97,053.80 is: 145,580.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,274.60 : 154,911.90 = 97,053.80 : x
  2. Step 2: Convert to fraction form
    103,274.60/154,911.90 = 97,053.80/x
  3. Step 3: Cross multiply
    103,274.60x = 154,911.90 × 97,053.80
  4. Step 4: Simplify right side
    103,274.60x = 15,034,788,560.22
  5. Step 5: Solve for x
    x = 15,034,788,560.22/103,274.60
  6. Step 6: Final answer
    x = 145,580.70

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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.