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Finding the Fourth Proportional to 73,287.60, 102,810 and 73,287.60

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Solution

The fourth proportional to 73,287.60, 102,810 and 73,287.60 is: 102,810

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,287.60 : 102,810 = 73,287.60 : x
  2. Step 2: Convert to fraction form
    73,287.60/102,810 = 73,287.60/x
  3. Step 3: Cross multiply
    73,287.60x = 102,810 × 73,287.60
  4. Step 4: Simplify right side
    73,287.60x = 7,534,698,156.00
  5. Step 5: Solve for x
    x = 7,534,698,156.00/73,287.60
  6. Step 6: Final answer
    x = 102,810

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.