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Finding the Fourth Proportional to 256,397.33, 353,820.87 and 141,674.15

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Solution

The fourth proportional to 256,397.33, 353,820.87 and 141,674.15 is: 195,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,397.33 : 353,820.87 = 141,674.15 : x
  2. Step 2: Convert to fraction form
    256,397.33/353,820.87 = 141,674.15/x
  3. Step 3: Cross multiply
    256,397.33x = 353,820.87 × 141,674.15
  4. Step 4: Simplify right side
    256,397.33x = 50,127,271,894.06
  5. Step 5: Solve for x
    x = 50,127,271,894.06/256,397.33
  6. Step 6: Final answer
    x = 195,506.21

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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.