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Finding the Fourth Proportional to 103,701.20, 155,551.80 and 41,416.40

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Solution

The fourth proportional to 103,701.20, 155,551.80 and 41,416.40 is: 62,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.20 : 155,551.80 = 41,416.40 : x
  2. Step 2: Convert to fraction form
    103,701.20/155,551.80 = 41,416.40/x
  3. Step 3: Cross multiply
    103,701.20x = 155,551.80 × 41,416.40
  4. Step 4: Simplify right side
    103,701.20x = 6,442,395,569.52
  5. Step 5: Solve for x
    x = 6,442,395,569.52/103,701.20
  6. Step 6: Final answer
    x = 62,124.60

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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.