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Finding the Fourth Proportional to 116,664.80, 174,802.80 and 109,666.40

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Solution

The fourth proportional to 116,664.80, 174,802.80 and 109,666.40 is: 164,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,664.80 : 174,802.80 = 109,666.40 : x
  2. Step 2: Convert to fraction form
    116,664.80/174,802.80 = 109,666.40/x
  3. Step 3: Cross multiply
    116,664.80x = 174,802.80 × 109,666.40
  4. Step 4: Simplify right side
    116,664.80x = 19,169,993,785.92
  5. Step 5: Solve for x
    x = 19,169,993,785.92/116,664.80
  6. Step 6: Final answer
    x = 164,316.86

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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.