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Finding the Fourth Proportional to 395,240.94, 592,955.89 and 129,001.95

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Solution

The fourth proportional to 395,240.94, 592,955.89 and 129,001.95 is: 193,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,240.94 : 592,955.89 = 129,001.95 : x
  2. Step 2: Convert to fraction form
    395,240.94/592,955.89 = 129,001.95/x
  3. Step 3: Cross multiply
    395,240.94x = 592,955.89 × 129,001.95
  4. Step 4: Simplify right side
    395,240.94x = 76,492,465,751.48
  5. Step 5: Solve for x
    x = 76,492,465,751.48/395,240.94
  6. Step 6: Final answer
    x = 193,533.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.