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Finding the Fourth Proportional to 191,996.40, 287,994.60 and 184,220.40

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Solution

The fourth proportional to 191,996.40, 287,994.60 and 184,220.40 is: 276,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,996.40 : 287,994.60 = 184,220.40 : x
  2. Step 2: Convert to fraction form
    191,996.40/287,994.60 = 184,220.40/x
  3. Step 3: Cross multiply
    191,996.40x = 287,994.60 × 184,220.40
  4. Step 4: Simplify right side
    191,996.40x = 53,054,480,409.84
  5. Step 5: Solve for x
    x = 53,054,480,409.84/191,996.40
  6. Step 6: Final answer
    x = 276,330.60

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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.