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Finding the Fourth Proportional to 153,605.70, 230,408.55 and 48,435.30

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Solution

The fourth proportional to 153,605.70, 230,408.55 and 48,435.30 is: 72,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,605.70 : 230,408.55 = 48,435.30 : x
  2. Step 2: Convert to fraction form
    153,605.70/230,408.55 = 48,435.30/x
  3. Step 3: Cross multiply
    153,605.70x = 230,408.55 × 48,435.30
  4. Step 4: Simplify right side
    153,605.70x = 11,159,907,241.82
  5. Step 5: Solve for x
    x = 11,159,907,241.82/153,605.70
  6. Step 6: Final answer
    x = 72,652.95

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1.5x scale

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.