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Finding the Fourth Proportional to 116,580.69, 174,873.99 and 87,185.13

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Solution

The fourth proportional to 116,580.69, 174,873.99 and 87,185.13 is: 130,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,580.69 : 174,873.99 = 87,185.13 : x
  2. Step 2: Convert to fraction form
    116,580.69/174,873.99 = 87,185.13/x
  3. Step 3: Cross multiply
    116,580.69x = 174,873.99 × 87,185.13
  4. Step 4: Simplify right side
    116,580.69x = 15,246,411,551.77
  5. Step 5: Solve for x
    x = 15,246,411,551.77/116,580.69
  6. Step 6: Final answer
    x = 130,779.90

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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.