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Finding the Fourth Proportional to 134,630.61, 185,789.64 and 73,376.70

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Solution

The fourth proportional to 134,630.61, 185,789.64 and 73,376.70 is: 101,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,630.61 : 185,789.64 = 73,376.70 : x
  2. Step 2: Convert to fraction form
    134,630.61/185,789.64 = 73,376.70/x
  3. Step 3: Cross multiply
    134,630.61x = 185,789.64 × 73,376.70
  4. Step 4: Simplify right side
    134,630.61x = 13,632,630,677.39
  5. Step 5: Solve for x
    x = 13,632,630,677.39/134,630.61
  6. Step 6: Final answer
    x = 101,259.52

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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.