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Finding the Fourth Proportional to 126,903.64, 190,218.48 and 55,762.96

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Solution

The fourth proportional to 126,903.64, 190,218.48 and 55,762.96 is: 83,584.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,903.64 : 190,218.48 = 55,762.96 : x
  2. Step 2: Convert to fraction form
    126,903.64/190,218.48 = 55,762.96/x
  3. Step 3: Cross multiply
    126,903.64x = 190,218.48 × 55,762.96
  4. Step 4: Simplify right side
    126,903.64x = 10,607,145,491.50
  5. Step 5: Solve for x
    x = 10,607,145,491.50/126,903.64
  6. Step 6: Final answer
    x = 83,584.25

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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.