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Finding the Fourth Proportional to 163,458.64, 245,013.60 and 93,186.64

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Solution

The fourth proportional to 163,458.64, 245,013.60 and 93,186.64 is: 139,680.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,458.64 : 245,013.60 = 93,186.64 : x
  2. Step 2: Convert to fraction form
    163,458.64/245,013.60 = 93,186.64/x
  3. Step 3: Cross multiply
    163,458.64x = 245,013.60 × 93,186.64
  4. Step 4: Simplify right side
    163,458.64x = 22,831,994,138.30
  5. Step 5: Solve for x
    x = 22,831,994,138.30/163,458.64
  6. Step 6: Final answer
    x = 139,680.56

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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.