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Finding the Fourth Proportional to 170,551.52, 235,425.94 and 128,232.98

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Solution

The fourth proportional to 170,551.52, 235,425.94 and 128,232.98 is: 177,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,551.52 : 235,425.94 = 128,232.98 : x
  2. Step 2: Convert to fraction form
    170,551.52/235,425.94 = 128,232.98/x
  3. Step 3: Cross multiply
    170,551.52x = 235,425.94 × 128,232.98
  4. Step 4: Simplify right side
    170,551.52x = 30,189,368,678.37
  5. Step 5: Solve for x
    x = 30,189,368,678.37/170,551.52
  6. Step 6: Final answer
    x = 177,010.26

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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.