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Finding the Fourth Proportional to 325,325.60, 488,068.40 and 112,096.80

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Solution

The fourth proportional to 325,325.60, 488,068.40 and 112,096.80 is: 168,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,325.60 : 488,068.40 = 112,096.80 : x
  2. Step 2: Convert to fraction form
    325,325.60/488,068.40 = 112,096.80/x
  3. Step 3: Cross multiply
    325,325.60x = 488,068.40 × 112,096.80
  4. Step 4: Simplify right side
    325,325.60x = 54,710,905,821.12
  5. Step 5: Solve for x
    x = 54,710,905,821.12/325,325.60
  6. Step 6: Final answer
    x = 168,172.77

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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.