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Finding the Fourth Proportional to 127,897.60, 192,076.80 and 92,876.80

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Solution

The fourth proportional to 127,897.60, 192,076.80 and 92,876.80 is: 139,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,897.60 : 192,076.80 = 92,876.80 : x
  2. Step 2: Convert to fraction form
    127,897.60/192,076.80 = 92,876.80/x
  3. Step 3: Cross multiply
    127,897.60x = 192,076.80 × 92,876.80
  4. Step 4: Simplify right side
    127,897.60x = 17,839,478,538.24
  5. Step 5: Solve for x
    x = 17,839,478,538.24/127,897.60
  6. Step 6: Final answer
    x = 139,482.51

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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.