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Finding the Fourth Proportional to 75,668.65, 104,425.43 and 47,004.01

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Solution

The fourth proportional to 75,668.65, 104,425.43 and 47,004.01 is: 64,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,668.65 : 104,425.43 = 47,004.01 : x
  2. Step 2: Convert to fraction form
    75,668.65/104,425.43 = 47,004.01/x
  3. Step 3: Cross multiply
    75,668.65x = 104,425.43 × 47,004.01
  4. Step 4: Simplify right side
    75,668.65x = 4,908,413,459.89
  5. Step 5: Solve for x
    x = 4,908,413,459.89/75,668.65
  6. Step 6: Final answer
    x = 64,867.20

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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.