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Finding the Fourth Proportional to 174,557.60, 261,836.40 and 103,698.80

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Solution

The fourth proportional to 174,557.60, 261,836.40 and 103,698.80 is: 155,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,557.60 : 261,836.40 = 103,698.80 : x
  2. Step 2: Convert to fraction form
    174,557.60/261,836.40 = 103,698.80/x
  3. Step 3: Cross multiply
    174,557.60x = 261,836.40 × 103,698.80
  4. Step 4: Simplify right side
    174,557.60x = 27,152,120,476.32
  5. Step 5: Solve for x
    x = 27,152,120,476.32/174,557.60
  6. Step 6: Final answer
    x = 155,548.20

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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.