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Finding the Fourth Proportional to 116,970.55, 161,419.41 and 63,255.60

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Solution

The fourth proportional to 116,970.55, 161,419.41 and 63,255.60 is: 87,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,970.55 : 161,419.41 = 63,255.60 : x
  2. Step 2: Convert to fraction form
    116,970.55/161,419.41 = 63,255.60/x
  3. Step 3: Cross multiply
    116,970.55x = 161,419.41 × 63,255.60
  4. Step 4: Simplify right side
    116,970.55x = 10,210,681,631.20
  5. Step 5: Solve for x
    x = 10,210,681,631.20/116,970.55
  6. Step 6: Final answer
    x = 87,292.76

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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.