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Finding the Fourth Proportional to 171,762.19, 237,034.16 and 128,665.33

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Solution

The fourth proportional to 171,762.19, 237,034.16 and 128,665.33 is: 177,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,762.19 : 237,034.16 = 128,665.33 : x
  2. Step 2: Convert to fraction form
    171,762.19/237,034.16 = 128,665.33/x
  3. Step 3: Cross multiply
    171,762.19x = 237,034.16 × 128,665.33
  4. Step 4: Simplify right side
    171,762.19x = 30,498,078,417.67
  5. Step 5: Solve for x
    x = 30,498,078,417.67/171,762.19
  6. Step 6: Final answer
    x = 177,559.91

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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.