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Finding the Fourth Proportional to 405,166.67, 607,750.46 and 105,647.00

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Solution

The fourth proportional to 405,166.67, 607,750.46 and 105,647.00 is: 158,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,166.67 : 607,750.46 = 105,647.00 : x
  2. Step 2: Convert to fraction form
    405,166.67/607,750.46 = 105,647.00/x
  3. Step 3: Cross multiply
    405,166.67x = 607,750.46 × 105,647.00
  4. Step 4: Simplify right side
    405,166.67x = 64,207,009,280.63
  5. Step 5: Solve for x
    x = 64,207,009,280.63/405,166.67
  6. Step 6: Final answer
    x = 158,470.61

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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.