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Finding the Fourth Proportional to 256,646.65, 354,162.21 and 141,917.84

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Solution

The fourth proportional to 256,646.65, 354,162.21 and 141,917.84 is: 195,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,646.65 : 354,162.21 = 141,917.84 : x
  2. Step 2: Convert to fraction form
    256,646.65/354,162.21 = 141,917.84/x
  3. Step 3: Cross multiply
    256,646.65x = 354,162.21 × 141,917.84
  4. Step 4: Simplify right side
    256,646.65x = 50,261,935,852.83
  5. Step 5: Solve for x
    x = 50,261,935,852.83/256,646.65
  6. Step 6: Final answer
    x = 195,841.00

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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.