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Finding the Fourth Proportional to 136,656.94, 205,048.68 and 52,388.92

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Solution

The fourth proportional to 136,656.94, 205,048.68 and 52,388.92 is: 78,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656.94 : 205,048.68 = 52,388.92 : x
  2. Step 2: Convert to fraction form
    136,656.94/205,048.68 = 52,388.92/x
  3. Step 3: Cross multiply
    136,656.94x = 205,048.68 × 52,388.92
  4. Step 4: Simplify right side
    136,656.94x = 10,742,278,892.63
  5. Step 5: Solve for x
    x = 10,742,278,892.63/136,656.94
  6. Step 6: Final answer
    x = 78,607.64

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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.