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Finding the Fourth Proportional to 256,510.32, 353,983.50 and 143,333.16

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Solution

The fourth proportional to 256,510.32, 353,983.50 and 143,333.16 is: 197,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,510.32 : 353,983.50 = 143,333.16 : x
  2. Step 2: Convert to fraction form
    256,510.32/353,983.50 = 143,333.16/x
  3. Step 3: Cross multiply
    256,510.32x = 353,983.50 × 143,333.16
  4. Step 4: Simplify right side
    256,510.32x = 50,737,573,642.86
  5. Step 5: Solve for x
    x = 50,737,573,642.86/256,510.32
  6. Step 6: Final answer
    x = 197,799.35

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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.