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Finding the Fourth Proportional to 355,111.52, 532,661.76 and 105,793.60

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Solution

The fourth proportional to 355,111.52, 532,661.76 and 105,793.60 is: 158,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,111.52 : 532,661.76 = 105,793.60 : x
  2. Step 2: Convert to fraction form
    355,111.52/532,661.76 = 105,793.60/x
  3. Step 3: Cross multiply
    355,111.52x = 532,661.76 × 105,793.60
  4. Step 4: Simplify right side
    355,111.52x = 56,352,205,172.74
  5. Step 5: Solve for x
    x = 56,352,205,172.74/355,111.52
  6. Step 6: Final answer
    x = 158,688.76

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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.