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Finding the Fourth Proportional to 453,710.67, 680,514.17 and 121,312.59

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Solution

The fourth proportional to 453,710.67, 680,514.17 and 121,312.59 is: 181,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,710.67 : 680,514.17 = 121,312.59 : x
  2. Step 2: Convert to fraction form
    453,710.67/680,514.17 = 121,312.59/x
  3. Step 3: Cross multiply
    453,710.67x = 680,514.17 × 121,312.59
  4. Step 4: Simplify right side
    453,710.67x = 82,554,935,887.84
  5. Step 5: Solve for x
    x = 82,554,935,887.84/453,710.67
  6. Step 6: Final answer
    x = 181,955.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.