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Finding the Fourth Proportional to 256,123.00, 384,203.06 and 98,351.45

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Solution

The fourth proportional to 256,123.00, 384,203.06 and 98,351.45 is: 147,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,123.00 : 384,203.06 = 98,351.45 : x
  2. Step 2: Convert to fraction form
    256,123.00/384,203.06 = 98,351.45/x
  3. Step 3: Cross multiply
    256,123.00x = 384,203.06 × 98,351.45
  4. Step 4: Simplify right side
    256,123.00x = 37,786,927,442.24
  5. Step 5: Solve for x
    x = 37,786,927,442.24/256,123.00
  6. Step 6: Final answer
    x = 147,534.30

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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.