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Finding the Fourth Proportional to 256,295.12, 353,707.08 and 148,899.92

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Solution

The fourth proportional to 256,295.12, 353,707.08 and 148,899.92 is: 205,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,295.12 : 353,707.08 = 148,899.92 : x
  2. Step 2: Convert to fraction form
    256,295.12/353,707.08 = 148,899.92/x
  3. Step 3: Cross multiply
    256,295.12x = 353,707.08 × 148,899.92
  4. Step 4: Simplify right side
    256,295.12x = 52,666,955,915.43
  5. Step 5: Solve for x
    x = 52,666,955,915.43/256,295.12
  6. Step 6: Final answer
    x = 205,493.40

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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.