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Finding the Fourth Proportional to 265,886.55, 398,577.56 and 106,060.77

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Solution

The fourth proportional to 265,886.55, 398,577.56 and 106,060.77 is: 158,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,886.55 : 398,577.56 = 106,060.77 : x
  2. Step 2: Convert to fraction form
    265,886.55/398,577.56 = 106,060.77/x
  3. Step 3: Cross multiply
    265,886.55x = 398,577.56 × 106,060.77
  4. Step 4: Simplify right side
    265,886.55x = 42,273,442,388.02
  5. Step 5: Solve for x
    x = 42,273,442,388.02/265,886.55
  6. Step 6: Final answer
    x = 158,990.53

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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.