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Finding the Fourth Proportional to 61,153.60, 91,730.40 and 44,435.20

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Solution

The fourth proportional to 61,153.60, 91,730.40 and 44,435.20 is: 66,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,153.60 : 91,730.40 = 44,435.20 : x
  2. Step 2: Convert to fraction form
    61,153.60/91,730.40 = 44,435.20/x
  3. Step 3: Cross multiply
    61,153.60x = 91,730.40 × 44,435.20
  4. Step 4: Simplify right side
    61,153.60x = 4,076,058,670.08
  5. Step 5: Solve for x
    x = 4,076,058,670.08/61,153.60
  6. Step 6: Final answer
    x = 66,652.80

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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.