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Finding the Fourth Proportional to 119,473.02, 164,871.50 and 65,756.88

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Solution

The fourth proportional to 119,473.02, 164,871.50 and 65,756.88 is: 90,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,473.02 : 164,871.50 = 65,756.88 : x
  2. Step 2: Convert to fraction form
    119,473.02/164,871.50 = 65,756.88/x
  3. Step 3: Cross multiply
    119,473.02x = 164,871.50 × 65,756.88
  4. Step 4: Simplify right side
    119,473.02x = 10,841,435,440.92
  5. Step 5: Solve for x
    x = 10,841,435,440.92/119,473.02
  6. Step 6: Final answer
    x = 90,743.80

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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.