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Finding the Fourth Proportional to 269,802.60, 372,323 and 148,940.80

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Solution

The fourth proportional to 269,802.60, 372,323 and 148,940.80 is: 205,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,802.60 : 372,323 = 148,940.80 : x
  2. Step 2: Convert to fraction form
    269,802.60/372,323 = 148,940.80/x
  3. Step 3: Cross multiply
    269,802.60x = 372,323 × 148,940.80
  4. Step 4: Simplify right side
    269,802.60x = 55,454,085,478.40
  5. Step 5: Solve for x
    x = 55,454,085,478.40/269,802.60
  6. Step 6: Final answer
    x = 205,535.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.