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Finding the Fourth Proportional to 354,833.40, 532,055.70 and 118,054.20

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Solution

The fourth proportional to 354,833.40, 532,055.70 and 118,054.20 is: 177,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,833.40 : 532,055.70 = 118,054.20 : x
  2. Step 2: Convert to fraction form
    354,833.40/532,055.70 = 118,054.20/x
  3. Step 3: Cross multiply
    354,833.40x = 532,055.70 × 118,054.20
  4. Step 4: Simplify right side
    354,833.40x = 62,811,410,018.94
  5. Step 5: Solve for x
    x = 62,811,410,018.94/354,833.40
  6. Step 6: Final answer
    x = 177,016.62

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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.