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Finding the Fourth Proportional to 100,035.60, 149,851.80 and 62,480.40

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Solution

The fourth proportional to 100,035.60, 149,851.80 and 62,480.40 is: 93,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,035.60 : 149,851.80 = 62,480.40 : x
  2. Step 2: Convert to fraction form
    100,035.60/149,851.80 = 62,480.40/x
  3. Step 3: Cross multiply
    100,035.60x = 149,851.80 × 62,480.40
  4. Step 4: Simplify right side
    100,035.60x = 9,362,800,404.72
  5. Step 5: Solve for x
    x = 9,362,800,404.72/100,035.60
  6. Step 6: Final answer
    x = 93,594.68

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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.