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Finding the Fourth Proportional to 161,078.55, 222,261.71 and 93,101.87

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Solution

The fourth proportional to 161,078.55, 222,261.71 and 93,101.87 is: 128,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,078.55 : 222,261.71 = 93,101.87 : x
  2. Step 2: Convert to fraction form
    161,078.55/222,261.71 = 93,101.87/x
  3. Step 3: Cross multiply
    161,078.55x = 222,261.71 × 93,101.87
  4. Step 4: Simplify right side
    161,078.55x = 20,692,979,719.09
  5. Step 5: Solve for x
    x = 20,692,979,719.09/161,078.55
  6. Step 6: Final answer
    x = 128,465.15

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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.