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Finding the Fourth Proportional to 116,388.07, 160,615.70 and 66,087.07

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Solution

The fourth proportional to 116,388.07, 160,615.70 and 66,087.07 is: 91,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,388.07 : 160,615.70 = 66,087.07 : x
  2. Step 2: Convert to fraction form
    116,388.07/160,615.70 = 66,087.07/x
  3. Step 3: Cross multiply
    116,388.07x = 160,615.70 × 66,087.07
  4. Step 4: Simplify right side
    116,388.07x = 10,614,621,009.00
  5. Step 5: Solve for x
    x = 10,614,621,009.00/116,388.07
  6. Step 6: Final answer
    x = 91,200.25

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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.