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Finding the Fourth Proportional to 64,355.46, 88,712.09 and 45,181.44

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Solution

The fourth proportional to 64,355.46, 88,712.09 and 45,181.44 is: 62,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.46 : 88,712.09 = 45,181.44 : x
  2. Step 2: Convert to fraction form
    64,355.46/88,712.09 = 45,181.44/x
  3. Step 3: Cross multiply
    64,355.46x = 88,712.09 × 45,181.44
  4. Step 4: Simplify right side
    64,355.46x = 4,008,139,971.61
  5. Step 5: Solve for x
    x = 4,008,139,971.61/64,355.46
  6. Step 6: Final answer
    x = 62,281.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.