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Finding the Fourth Proportional to 103,700.30, 155,161.65 and 94,369.10

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Solution

The fourth proportional to 103,700.30, 155,161.65 and 94,369.10 is: 141,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,700.30 : 155,161.65 = 94,369.10 : x
  2. Step 2: Convert to fraction form
    103,700.30/155,161.65 = 94,369.10/x
  3. Step 3: Cross multiply
    103,700.30x = 155,161.65 × 94,369.10
  4. Step 4: Simplify right side
    103,700.30x = 14,642,465,265.02
  5. Step 5: Solve for x
    x = 14,642,465,265.02/103,700.30
  6. Step 6: Final answer
    x = 141,199.84

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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.