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Finding the Fourth Proportional to 118,458.79, 177,768.14 and 46,402.76

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Solution

The fourth proportional to 118,458.79, 177,768.14 and 46,402.76 is: 69,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,458.79 : 177,768.14 = 46,402.76 : x
  2. Step 2: Convert to fraction form
    118,458.79/177,768.14 = 46,402.76/x
  3. Step 3: Cross multiply
    118,458.79x = 177,768.14 × 46,402.76
  4. Step 4: Simplify right side
    118,458.79x = 8,248,932,896.49
  5. Step 5: Solve for x
    x = 8,248,932,896.49/118,458.79
  6. Step 6: Final answer
    x = 69,635.47

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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.