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Finding the Fourth Proportional to 366,124.60, 548,117.70 and 261,148.60

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Solution

The fourth proportional to 366,124.60, 548,117.70 and 261,148.60 is: 390,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,124.60 : 548,117.70 = 261,148.60 : x
  2. Step 2: Convert to fraction form
    366,124.60/548,117.70 = 261,148.60/x
  3. Step 3: Cross multiply
    366,124.60x = 548,117.70 × 261,148.60
  4. Step 4: Simplify right side
    366,124.60x = 143,140,169,990.22
  5. Step 5: Solve for x
    x = 143,140,169,990.22/366,124.60
  6. Step 6: Final answer
    x = 390,960.26

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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.