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Finding the Fourth Proportional to 170,703.94, 235,570.11 and 99,090.64

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Solution

The fourth proportional to 170,703.94, 235,570.11 and 99,090.64 is: 136,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,703.94 : 235,570.11 = 99,090.64 : x
  2. Step 2: Convert to fraction form
    170,703.94/235,570.11 = 99,090.64/x
  3. Step 3: Cross multiply
    170,703.94x = 235,570.11 × 99,090.64
  4. Step 4: Simplify right side
    170,703.94x = 23,342,792,964.77
  5. Step 5: Solve for x
    x = 23,342,792,964.77/170,703.94
  6. Step 6: Final answer
    x = 136,744.31

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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.