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Finding the Fourth Proportional to 355,212.56, 532,818.88 and 144,866.96

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Solution

The fourth proportional to 355,212.56, 532,818.88 and 144,866.96 is: 217,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,212.56 : 532,818.88 = 144,866.96 : x
  2. Step 2: Convert to fraction form
    355,212.56/532,818.88 = 144,866.96/x
  3. Step 3: Cross multiply
    355,212.56x = 532,818.88 × 144,866.96
  4. Step 4: Simplify right side
    355,212.56x = 77,187,851,376.20
  5. Step 5: Solve for x
    x = 77,187,851,376.20/355,212.56
  6. Step 6: Final answer
    x = 217,300.46

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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.