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Finding the Fourth Proportional to 119,455.59, 164,848.74 and 65,740.61

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Solution

The fourth proportional to 119,455.59, 164,848.74 and 65,740.61 is: 90,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,455.59 : 164,848.74 = 65,740.61 : x
  2. Step 2: Convert to fraction form
    119,455.59/164,848.74 = 65,740.61/x
  3. Step 3: Cross multiply
    119,455.59x = 164,848.74 × 65,740.61
  4. Step 4: Simplify right side
    119,455.59x = 10,837,256,890.93
  5. Step 5: Solve for x
    x = 10,837,256,890.93/119,455.59
  6. Step 6: Final answer
    x = 90,722.05

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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.