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Finding the Fourth Proportional to 64,030.94, 95,968.62 and 45,316.44

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Solution

The fourth proportional to 64,030.94, 95,968.62 and 45,316.44 is: 67,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,030.94 : 95,968.62 = 45,316.44 : x
  2. Step 2: Convert to fraction form
    64,030.94/95,968.62 = 45,316.44/x
  3. Step 3: Cross multiply
    64,030.94x = 95,968.62 × 45,316.44
  4. Step 4: Simplify right side
    64,030.94x = 4,348,956,210.11
  5. Step 5: Solve for x
    x = 4,348,956,210.11/64,030.94
  6. Step 6: Final answer
    x = 67,919.61

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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.