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Finding the Fourth Proportional to 118,802.82, 178,205.09 and 39,917.03

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Solution

The fourth proportional to 118,802.82, 178,205.09 and 39,917.03 is: 59,875.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,802.82 : 178,205.09 = 39,917.03 : x
  2. Step 2: Convert to fraction form
    118,802.82/178,205.09 = 39,917.03/x
  3. Step 3: Cross multiply
    118,802.82x = 178,205.09 × 39,917.03
  4. Step 4: Simplify right side
    118,802.82x = 7,113,416,833.07
  5. Step 5: Solve for x
    x = 7,113,416,833.07/118,802.82
  6. Step 6: Final answer
    x = 59,875.82

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1.5x scale

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.