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Finding the Fourth Proportional to 245,630.60, 368,445.90 and 140,460.20

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Solution

The fourth proportional to 245,630.60, 368,445.90 and 140,460.20 is: 210,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,630.60 : 368,445.90 = 140,460.20 : x
  2. Step 2: Convert to fraction form
    245,630.60/368,445.90 = 140,460.20/x
  3. Step 3: Cross multiply
    245,630.60x = 368,445.90 × 140,460.20
  4. Step 4: Simplify right side
    245,630.60x = 51,751,984,803.18
  5. Step 5: Solve for x
    x = 51,751,984,803.18/245,630.60
  6. Step 6: Final answer
    x = 210,690.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.