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Finding the Fourth Proportional to 155,980.81, 233,987.61 and 50,807.98

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Solution

The fourth proportional to 155,980.81, 233,987.61 and 50,807.98 is: 76,217.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,980.81 : 233,987.61 = 50,807.98 : x
  2. Step 2: Convert to fraction form
    155,980.81/233,987.61 = 50,807.98/x
  3. Step 3: Cross multiply
    155,980.81x = 233,987.61 × 50,807.98
  4. Step 4: Simplify right side
    155,980.81x = 11,888,437,809.13
  5. Step 5: Solve for x
    x = 11,888,437,809.13/155,980.81
  6. Step 6: Final answer
    x = 76,217.31

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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.