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Finding the Fourth Proportional to 118,335, 177,557.80 and 51,766.50

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Solution

The fourth proportional to 118,335, 177,557.80 and 51,766.50 is: 77,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,335 : 177,557.80 = 51,766.50 : x
  2. Step 2: Convert to fraction form
    118,335/177,557.80 = 51,766.50/x
  3. Step 3: Cross multiply
    118,335x = 177,557.80 × 51,766.50
  4. Step 4: Simplify right side
    118,335x = 9,191,545,853.70
  5. Step 5: Solve for x
    x = 9,191,545,853.70/118,335
  6. Step 6: Final answer
    x = 77,673.94

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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.