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Finding the Fourth Proportional to 103,954.20, 155,931.30 and 37,404.60

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Solution

The fourth proportional to 103,954.20, 155,931.30 and 37,404.60 is: 56,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,954.20 : 155,931.30 = 37,404.60 : x
  2. Step 2: Convert to fraction form
    103,954.20/155,931.30 = 37,404.60/x
  3. Step 3: Cross multiply
    103,954.20x = 155,931.30 × 37,404.60
  4. Step 4: Simplify right side
    103,954.20x = 5,832,547,903.98
  5. Step 5: Solve for x
    x = 5,832,547,903.98/103,954.20
  6. Step 6: Final answer
    x = 56,106.90

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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.