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Finding the Fourth Proportional to 256,444.94, 353,875.48 and 141,722.21

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Solution

The fourth proportional to 256,444.94, 353,875.48 and 141,722.21 is: 195,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,444.94 : 353,875.48 = 141,722.21 : x
  2. Step 2: Convert to fraction form
    256,444.94/353,875.48 = 141,722.21/x
  3. Step 3: Cross multiply
    256,444.94x = 353,875.48 × 141,722.21
  4. Step 4: Simplify right side
    256,444.94x = 50,152,012,966.73
  5. Step 5: Solve for x
    x = 50,152,012,966.73/256,444.94
  6. Step 6: Final answer
    x = 195,566.40

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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.