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Finding the Fourth Proportional to 256,607.85, 354,111.51 and 141,884.52

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Solution

The fourth proportional to 256,607.85, 354,111.51 and 141,884.52 is: 195,796.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607.85 : 354,111.51 = 141,884.52 : x
  2. Step 2: Convert to fraction form
    256,607.85/354,111.51 = 141,884.52/x
  3. Step 3: Cross multiply
    256,607.85x = 354,111.51 × 141,884.52
  4. Step 4: Simplify right side
    256,607.85x = 50,242,941,622.83
  5. Step 5: Solve for x
    x = 50,242,941,622.83/256,607.85
  6. Step 6: Final answer
    x = 195,796.59

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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.