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Finding the Fourth Proportional to 492,316.61, 738,409.27 and 137,300.90

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Solution

The fourth proportional to 492,316.61, 738,409.27 and 137,300.90 is: 205,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,316.61 : 738,409.27 = 137,300.90 : x
  2. Step 2: Convert to fraction form
    492,316.61/738,409.27 = 137,300.90/x
  3. Step 3: Cross multiply
    492,316.61x = 738,409.27 × 137,300.90
  4. Step 4: Simplify right side
    492,316.61x = 101,384,257,339.34
  5. Step 5: Solve for x
    x = 101,384,257,339.34/492,316.61
  6. Step 6: Final answer
    x = 205,933.04

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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.