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Finding the Fourth Proportional to 56,246.40, 84,369.60 and 48,729.60

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Solution

The fourth proportional to 56,246.40, 84,369.60 and 48,729.60 is: 73,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,246.40 : 84,369.60 = 48,729.60 : x
  2. Step 2: Convert to fraction form
    56,246.40/84,369.60 = 48,729.60/x
  3. Step 3: Cross multiply
    56,246.40x = 84,369.60 × 48,729.60
  4. Step 4: Simplify right side
    56,246.40x = 4,111,296,860.16
  5. Step 5: Solve for x
    x = 4,111,296,860.16/56,246.40
  6. Step 6: Final answer
    x = 73,094.40

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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.