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Finding the Fourth Proportional to 256,132.98, 353,483.73 and 148,736.70

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Solution

The fourth proportional to 256,132.98, 353,483.73 and 148,736.70 is: 205,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,132.98 : 353,483.73 = 148,736.70 : x
  2. Step 2: Convert to fraction form
    256,132.98/353,483.73 = 148,736.70/x
  3. Step 3: Cross multiply
    256,132.98x = 353,483.73 × 148,736.70
  4. Step 4: Simplify right side
    256,132.98x = 52,576,003,503.89
  5. Step 5: Solve for x
    x = 52,576,003,503.89/256,132.98
  6. Step 6: Final answer
    x = 205,268.39

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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.