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Finding the Fourth Proportional to 103,558.91, 155,336.79 and 46,592.58

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Solution

The fourth proportional to 103,558.91, 155,336.79 and 46,592.58 is: 69,888.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,558.91 : 155,336.79 = 46,592.58 : x
  2. Step 2: Convert to fraction form
    103,558.91/155,336.79 = 46,592.58/x
  3. Step 3: Cross multiply
    103,558.91x = 155,336.79 × 46,592.58
  4. Step 4: Simplify right side
    103,558.91x = 7,237,541,815.02
  5. Step 5: Solve for x
    x = 7,237,541,815.02/103,558.91
  6. Step 6: Final answer
    x = 69,888.16

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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.