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Finding the Fourth Proportional to 453,666.63, 680,598.69 and 138,115.34

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Solution

The fourth proportional to 453,666.63, 680,598.69 and 138,115.34 is: 207,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,666.63 : 680,598.69 = 138,115.34 : x
  2. Step 2: Convert to fraction form
    453,666.63/680,598.69 = 138,115.34/x
  3. Step 3: Cross multiply
    453,666.63x = 680,598.69 × 138,115.34
  4. Step 4: Simplify right side
    453,666.63x = 94,001,119,472.90
  5. Step 5: Solve for x
    x = 94,001,119,472.90/453,666.63
  6. Step 6: Final answer
    x = 207,203.07

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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.