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Finding the Fourth Proportional to 92,752.54, 127,858.93 and 72,574.36

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Solution

The fourth proportional to 92,752.54, 127,858.93 and 72,574.36 is: 100,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,752.54 : 127,858.93 = 72,574.36 : x
  2. Step 2: Convert to fraction form
    92,752.54/127,858.93 = 72,574.36/x
  3. Step 3: Cross multiply
    92,752.54x = 127,858.93 × 72,574.36
  4. Step 4: Simplify right side
    92,752.54x = 9,279,280,015.03
  5. Step 5: Solve for x
    x = 9,279,280,015.03/92,752.54
  6. Step 6: Final answer
    x = 100,043.41

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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.