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Finding the Fourth Proportional to 170,693.64, 235,585.98 and 99,133.56

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Solution

The fourth proportional to 170,693.64, 235,585.98 and 99,133.56 is: 136,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,693.64 : 235,585.98 = 99,133.56 : x
  2. Step 2: Convert to fraction form
    170,693.64/235,585.98 = 99,133.56/x
  3. Step 3: Cross multiply
    170,693.64x = 235,585.98 × 99,133.56
  4. Step 4: Simplify right side
    170,693.64x = 23,354,476,883.49
  5. Step 5: Solve for x
    x = 23,354,476,883.49/170,693.64
  6. Step 6: Final answer
    x = 136,821.01

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1.5x scale

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.