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Finding the Fourth Proportional to 126,907.92, 174,777.60 and 124,152.72

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Solution

The fourth proportional to 126,907.92, 174,777.60 and 124,152.72 is: 170,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,907.92 : 174,777.60 = 124,152.72 : x
  2. Step 2: Convert to fraction form
    126,907.92/174,777.60 = 124,152.72/x
  3. Step 3: Cross multiply
    126,907.92x = 174,777.60 × 124,152.72
  4. Step 4: Simplify right side
    126,907.92x = 21,699,114,435.07
  5. Step 5: Solve for x
    x = 21,699,114,435.07/126,907.92
  6. Step 6: Final answer
    x = 170,983.14

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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.