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Finding the Fourth Proportional to 97,328.40, 145,911.60 and 41,211.60

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Solution

The fourth proportional to 97,328.40, 145,911.60 and 41,211.60 is: 61,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,328.40 : 145,911.60 = 41,211.60 : x
  2. Step 2: Convert to fraction form
    97,328.40/145,911.60 = 41,211.60/x
  3. Step 3: Cross multiply
    97,328.40x = 145,911.60 × 41,211.60
  4. Step 4: Simplify right side
    97,328.40x = 6,013,250,494.56
  5. Step 5: Solve for x
    x = 6,013,250,494.56/97,328.40
  6. Step 6: Final answer
    x = 61,783.10

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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.