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Finding the Fourth Proportional to 184,578.20, 254,728.50 and 112,938.20

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Solution

The fourth proportional to 184,578.20, 254,728.50 and 112,938.20 is: 155,861.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,578.20 : 254,728.50 = 112,938.20 : x
  2. Step 2: Convert to fraction form
    184,578.20/254,728.50 = 112,938.20/x
  3. Step 3: Cross multiply
    184,578.20x = 254,728.50 × 112,938.20
  4. Step 4: Simplify right side
    184,578.20x = 28,768,578,278.70
  5. Step 5: Solve for x
    x = 28,768,578,278.70/184,578.20
  6. Step 6: Final answer
    x = 155,861.19

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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.