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Finding the Fourth Proportional to 103,671.68, 155,509.92 and 37,116.40

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Solution

The fourth proportional to 103,671.68, 155,509.92 and 37,116.40 is: 55,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.68 : 155,509.92 = 37,116.40 : x
  2. Step 2: Convert to fraction form
    103,671.68/155,509.92 = 37,116.40/x
  3. Step 3: Cross multiply
    103,671.68x = 155,509.92 × 37,116.40
  4. Step 4: Simplify right side
    103,671.68x = 5,771,968,394.69
  5. Step 5: Solve for x
    x = 5,771,968,394.69/103,671.68
  6. Step 6: Final answer
    x = 55,675.46

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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.