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Finding the Fourth Proportional to 171,714.43, 256,308.40 and 159,681.07

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Solution

The fourth proportional to 171,714.43, 256,308.40 and 159,681.07 is: 238,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,714.43 : 256,308.40 = 159,681.07 : x
  2. Step 2: Convert to fraction form
    171,714.43/256,308.40 = 159,681.07/x
  3. Step 3: Cross multiply
    171,714.43x = 256,308.40 × 159,681.07
  4. Step 4: Simplify right side
    171,714.43x = 40,927,599,561.99
  5. Step 5: Solve for x
    x = 40,927,599,561.99/171,714.43
  6. Step 6: Final answer
    x = 238,346.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.