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Finding the Fourth Proportional to 162,879.60, 243,973.80 and 106,892.40

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Solution

The fourth proportional to 162,879.60, 243,973.80 and 106,892.40 is: 160,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,879.60 : 243,973.80 = 106,892.40 : x
  2. Step 2: Convert to fraction form
    162,879.60/243,973.80 = 106,892.40/x
  3. Step 3: Cross multiply
    162,879.60x = 243,973.80 × 106,892.40
  4. Step 4: Simplify right side
    162,879.60x = 26,078,945,019.12
  5. Step 5: Solve for x
    x = 26,078,945,019.12/162,879.60
  6. Step 6: Final answer
    x = 160,111.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.