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Finding the Fourth Proportional to 61,646.40, 92,235.60 and 40,910.40

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Solution

The fourth proportional to 61,646.40, 92,235.60 and 40,910.40 is: 61,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,646.40 : 92,235.60 = 40,910.40 : x
  2. Step 2: Convert to fraction form
    61,646.40/92,235.60 = 40,910.40/x
  3. Step 3: Cross multiply
    61,646.40x = 92,235.60 × 40,910.40
  4. Step 4: Simplify right side
    61,646.40x = 3,773,395,290.24
  5. Step 5: Solve for x
    x = 3,773,395,290.24/61,646.40
  6. Step 6: Final answer
    x = 61,210.31

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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.