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Finding the Fourth Proportional to 116,987.74, 161,462.93 and 66,014.92

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Solution

The fourth proportional to 116,987.74, 161,462.93 and 66,014.92 is: 91,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,987.74 : 161,462.93 = 66,014.92 : x
  2. Step 2: Convert to fraction form
    116,987.74/161,462.93 = 66,014.92/x
  3. Step 3: Cross multiply
    116,987.74x = 161,462.93 × 66,014.92
  4. Step 4: Simplify right side
    116,987.74x = 10,658,962,406.92
  5. Step 5: Solve for x
    x = 10,658,962,406.92/116,987.74
  6. Step 6: Final answer
    x = 91,111.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.