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Finding the Fourth Proportional to 103,466.90, 155,200.35 and 41,137.40

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Solution

The fourth proportional to 103,466.90, 155,200.35 and 41,137.40 is: 61,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,466.90 : 155,200.35 = 41,137.40 : x
  2. Step 2: Convert to fraction form
    103,466.90/155,200.35 = 41,137.40/x
  3. Step 3: Cross multiply
    103,466.90x = 155,200.35 × 41,137.40
  4. Step 4: Simplify right side
    103,466.90x = 6,384,538,878.09
  5. Step 5: Solve for x
    x = 6,384,538,878.09/103,466.90
  6. Step 6: Final answer
    x = 61,706.10

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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.