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Finding the Fourth Proportional to 256,602.60, 354,100.44 and 140,313.93

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Solution

The fourth proportional to 256,602.60, 354,100.44 and 140,313.93 is: 193,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,602.60 : 354,100.44 = 140,313.93 : x
  2. Step 2: Convert to fraction form
    256,602.60/354,100.44 = 140,313.93/x
  3. Step 3: Cross multiply
    256,602.60x = 354,100.44 × 140,313.93
  4. Step 4: Simplify right side
    256,602.60x = 49,685,224,351.13
  5. Step 5: Solve for x
    x = 49,685,224,351.13/256,602.60
  6. Step 6: Final answer
    x = 193,627.13

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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.