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Finding the Fourth Proportional to 170,298.16, 235,010.16 and 98,676.64

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Solution

The fourth proportional to 170,298.16, 235,010.16 and 98,676.64 is: 136,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,298.16 : 235,010.16 = 98,676.64 : x
  2. Step 2: Convert to fraction form
    170,298.16/235,010.16 = 98,676.64/x
  3. Step 3: Cross multiply
    170,298.16x = 235,010.16 × 98,676.64
  4. Step 4: Simplify right side
    170,298.16x = 23,190,012,954.66
  5. Step 5: Solve for x
    x = 23,190,012,954.66/170,298.16
  6. Step 6: Final answer
    x = 136,173.01

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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.