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Finding the Fourth Proportional to 453,008.40, 679,509.90 and 116,048.40

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Solution

The fourth proportional to 453,008.40, 679,509.90 and 116,048.40 is: 174,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,008.40 : 679,509.90 = 116,048.40 : x
  2. Step 2: Convert to fraction form
    453,008.40/679,509.90 = 116,048.40/x
  3. Step 3: Cross multiply
    453,008.40x = 679,509.90 × 116,048.40
  4. Step 4: Simplify right side
    453,008.40x = 78,856,036,679.16
  5. Step 5: Solve for x
    x = 78,856,036,679.16/453,008.40
  6. Step 6: Final answer
    x = 174,071.91

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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.