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Finding the Fourth Proportional to 103,785.60, 155,661.24 and 37,215.60

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Solution

The fourth proportional to 103,785.60, 155,661.24 and 37,215.60 is: 55,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,785.60 : 155,661.24 = 37,215.60 : x
  2. Step 2: Convert to fraction form
    103,785.60/155,661.24 = 37,215.60/x
  3. Step 3: Cross multiply
    103,785.60x = 155,661.24 × 37,215.60
  4. Step 4: Simplify right side
    103,785.60x = 5,793,026,443.34
  5. Step 5: Solve for x
    x = 5,793,026,443.34/103,785.60
  6. Step 6: Final answer
    x = 55,817.25

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1.5x scale

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.