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Finding the Fourth Proportional to 163,390.60, 244,429.80 and 141,447.70

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Solution

The fourth proportional to 163,390.60, 244,429.80 and 141,447.70 is: 211,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,390.60 : 244,429.80 = 141,447.70 : x
  2. Step 2: Convert to fraction form
    163,390.60/244,429.80 = 141,447.70/x
  3. Step 3: Cross multiply
    163,390.60x = 244,429.80 × 141,447.70
  4. Step 4: Simplify right side
    163,390.60x = 34,574,033,021.46
  5. Step 5: Solve for x
    x = 34,574,033,021.46/163,390.60
  6. Step 6: Final answer
    x = 211,603.56

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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.