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Finding the Fourth Proportional to 236,756.88, 326,722.53 and 129,326.94

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Solution

The fourth proportional to 236,756.88, 326,722.53 and 129,326.94 is: 178,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,756.88 : 326,722.53 = 129,326.94 : x
  2. Step 2: Convert to fraction form
    236,756.88/326,722.53 = 129,326.94/x
  3. Step 3: Cross multiply
    236,756.88x = 326,722.53 × 129,326.94
  4. Step 4: Simplify right side
    236,756.88x = 42,254,025,033.96
  5. Step 5: Solve for x
    x = 42,254,025,033.96/236,756.88
  6. Step 6: Final answer
    x = 178,470.10

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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.