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Finding the Fourth Proportional to 121,969.14, 183,031.78 and 65,848.37

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Solution

The fourth proportional to 121,969.14, 183,031.78 and 65,848.37 is: 98,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,969.14 : 183,031.78 = 65,848.37 : x
  2. Step 2: Convert to fraction form
    121,969.14/183,031.78 = 65,848.37/x
  3. Step 3: Cross multiply
    121,969.14x = 183,031.78 × 65,848.37
  4. Step 4: Simplify right side
    121,969.14x = 12,052,343,744.46
  5. Step 5: Solve for x
    x = 12,052,343,744.46/121,969.14
  6. Step 6: Final answer
    x = 98,814.70

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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.