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Finding the Fourth Proportional to 496,889.74, 745,319.42 and 141,904.40

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Solution

The fourth proportional to 496,889.74, 745,319.42 and 141,904.40 is: 212,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,889.74 : 745,319.42 = 141,904.40 : x
  2. Step 2: Convert to fraction form
    496,889.74/745,319.42 = 141,904.40/x
  3. Step 3: Cross multiply
    496,889.74x = 745,319.42 × 141,904.40
  4. Step 4: Simplify right side
    496,889.74x = 105,764,104,393.93
  5. Step 5: Solve for x
    x = 105,764,104,393.93/496,889.74
  6. Step 6: Final answer
    x = 212,852.26

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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.