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Finding the Fourth Proportional to 53,298,085.73, 79,947,128.60 and 53,298,085.73

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Solution

The fourth proportional to 53,298,085.73, 79,947,128.60 and 53,298,085.73 is: 79,947,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,298,085.73 : 79,947,128.60 = 53,298,085.73 : x
  2. Step 2: Convert to fraction form
    53,298,085.73/79,947,128.60 = 53,298,085.73/x
  3. Step 3: Cross multiply
    53,298,085.73x = 79,947,128.60 × 53,298,085.73
  4. Step 4: Simplify right side
    53,298,085.73x = 4,261,028,913,990,134.50
  5. Step 5: Solve for x
    x = 4,261,028,913,990,134.50/53,298,085.73
  6. Step 6: Final answer
    x = 79,947,128.60

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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.