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Finding the Fourth Proportional to 356,845.93, 535,261.50 and 86,975.60

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Solution

The fourth proportional to 356,845.93, 535,261.50 and 86,975.60 is: 130,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,845.93 : 535,261.50 = 86,975.60 : x
  2. Step 2: Convert to fraction form
    356,845.93/535,261.50 = 86,975.60/x
  3. Step 3: Cross multiply
    356,845.93x = 535,261.50 × 86,975.60
  4. Step 4: Simplify right side
    356,845.93x = 46,554,687,443.09
  5. Step 5: Solve for x
    x = 46,554,687,443.09/356,845.93
  6. Step 6: Final answer
    x = 130,461.59

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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.