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Finding the Fourth Proportional to 139,009.23, 191,853.23 and 88,026.62

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Solution

The fourth proportional to 139,009.23, 191,853.23 and 88,026.62 is: 121,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,009.23 : 191,853.23 = 88,026.62 : x
  2. Step 2: Convert to fraction form
    139,009.23/191,853.23 = 88,026.62/x
  3. Step 3: Cross multiply
    139,009.23x = 191,853.23 × 88,026.62
  4. Step 4: Simplify right side
    139,009.23x = 16,888,189,973.58
  5. Step 5: Solve for x
    x = 16,888,189,973.58/139,009.23
  6. Step 6: Final answer
    x = 121,489.70

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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.