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Finding the Fourth Proportional to 157,667.60, 236,501.40 and 122,416.40

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Solution

The fourth proportional to 157,667.60, 236,501.40 and 122,416.40 is: 183,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,667.60 : 236,501.40 = 122,416.40 : x
  2. Step 2: Convert to fraction form
    157,667.60/236,501.40 = 122,416.40/x
  3. Step 3: Cross multiply
    157,667.60x = 236,501.40 × 122,416.40
  4. Step 4: Simplify right side
    157,667.60x = 28,951,649,982.96
  5. Step 5: Solve for x
    x = 28,951,649,982.96/157,667.60
  6. Step 6: Final answer
    x = 183,624.60

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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.