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Finding the Fourth Proportional to 64,968.14, 89,659.64 and 45,854.03

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Solution

The fourth proportional to 64,968.14, 89,659.64 and 45,854.03 is: 63,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,968.14 : 89,659.64 = 45,854.03 : x
  2. Step 2: Convert to fraction form
    64,968.14/89,659.64 = 45,854.03/x
  3. Step 3: Cross multiply
    64,968.14x = 89,659.64 × 45,854.03
  4. Step 4: Simplify right side
    64,968.14x = 4,111,255,822.35
  5. Step 5: Solve for x
    x = 4,111,255,822.35/64,968.14
  6. Step 6: Final answer
    x = 63,281.11

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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.