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Finding the Fourth Proportional to 155,775.65, 233,563.64 and 65,793.98

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Solution

The fourth proportional to 155,775.65, 233,563.64 and 65,793.98 is: 98,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,775.65 : 233,563.64 = 65,793.98 : x
  2. Step 2: Convert to fraction form
    155,775.65/233,563.64 = 65,793.98/x
  3. Step 3: Cross multiply
    155,775.65x = 233,563.64 × 65,793.98
  4. Step 4: Simplify right side
    155,775.65x = 15,367,080,291.07
  5. Step 5: Solve for x
    x = 15,367,080,291.07/155,775.65
  6. Step 6: Final answer
    x = 98,648.80

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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.