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Finding the Fourth Proportional to 256,300.18, 353,679.60 and 153,050.88

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Solution

The fourth proportional to 256,300.18, 353,679.60 and 153,050.88 is: 211,201.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,300.18 : 353,679.60 = 153,050.88 : x
  2. Step 2: Convert to fraction form
    256,300.18/353,679.60 = 153,050.88/x
  3. Step 3: Cross multiply
    256,300.18x = 353,679.60 × 153,050.88
  4. Step 4: Simplify right side
    256,300.18x = 54,130,974,018.05
  5. Step 5: Solve for x
    x = 54,130,974,018.05/256,300.18
  6. Step 6: Final answer
    x = 211,201.47

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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.