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Finding the Fourth Proportional to 117,730.60, 162,468.06 and 64,015.96

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Solution

The fourth proportional to 117,730.60, 162,468.06 and 64,015.96 is: 88,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,730.60 : 162,468.06 = 64,015.96 : x
  2. Step 2: Convert to fraction form
    117,730.60/162,468.06 = 64,015.96/x
  3. Step 3: Cross multiply
    117,730.60x = 162,468.06 × 64,015.96
  4. Step 4: Simplify right side
    117,730.60x = 10,400,548,830.24
  5. Step 5: Solve for x
    x = 10,400,548,830.24/117,730.60
  6. Step 6: Final answer
    x = 88,341.93

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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.