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Finding the Fourth Proportional to 170,485.86, 235,322.10 and 98,883.48

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Solution

The fourth proportional to 170,485.86, 235,322.10 and 98,883.48 is: 136,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,485.86 : 235,322.10 = 98,883.48 : x
  2. Step 2: Convert to fraction form
    170,485.86/235,322.10 = 98,883.48/x
  3. Step 3: Cross multiply
    170,485.86x = 235,322.10 × 98,883.48
  4. Step 4: Simplify right side
    170,485.86x = 23,269,468,168.91
  5. Step 5: Solve for x
    x = 23,269,468,168.91/170,485.86
  6. Step 6: Final answer
    x = 136,489.14

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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.