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Finding the Fourth Proportional to 331,980.50, 458,133.10 and 181,077.50

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Solution

The fourth proportional to 331,980.50, 458,133.10 and 181,077.50 is: 249,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,980.50 : 458,133.10 = 181,077.50 : x
  2. Step 2: Convert to fraction form
    331,980.50/458,133.10 = 181,077.50/x
  3. Step 3: Cross multiply
    331,980.50x = 458,133.10 × 181,077.50
  4. Step 4: Simplify right side
    331,980.50x = 82,957,596,415.25
  5. Step 5: Solve for x
    x = 82,957,596,415.25/331,980.50
  6. Step 6: Final answer
    x = 249,886.96

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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.