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Finding the Fourth Proportional to 122,404.60, 183,606.90 and 102,575.80

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Solution

The fourth proportional to 122,404.60, 183,606.90 and 102,575.80 is: 153,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,404.60 : 183,606.90 = 102,575.80 : x
  2. Step 2: Convert to fraction form
    122,404.60/183,606.90 = 102,575.80/x
  3. Step 3: Cross multiply
    122,404.60x = 183,606.90 × 102,575.80
  4. Step 4: Simplify right side
    122,404.60x = 18,833,624,653.02
  5. Step 5: Solve for x
    x = 18,833,624,653.02/122,404.60
  6. Step 6: Final answer
    x = 153,863.70

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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.