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Finding the Fourth Proportional to 103,673.30, 155,509.95 and 37,115.60

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Solution

The fourth proportional to 103,673.30, 155,509.95 and 37,115.60 is: 55,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.30 : 155,509.95 = 37,115.60 : x
  2. Step 2: Convert to fraction form
    103,673.30/155,509.95 = 37,115.60/x
  3. Step 3: Cross multiply
    103,673.30x = 155,509.95 × 37,115.60
  4. Step 4: Simplify right side
    103,673.30x = 5,771,845,100.22
  5. Step 5: Solve for x
    x = 5,771,845,100.22/103,673.30
  6. Step 6: Final answer
    x = 55,673.40

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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.