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Finding the Fourth Proportional to 130,373.50, 179,900.54 and 73,004.84

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Solution

The fourth proportional to 130,373.50, 179,900.54 and 73,004.84 is: 100,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,373.50 : 179,900.54 = 73,004.84 : x
  2. Step 2: Convert to fraction form
    130,373.50/179,900.54 = 73,004.84/x
  3. Step 3: Cross multiply
    130,373.50x = 179,900.54 × 73,004.84
  4. Step 4: Simplify right side
    130,373.50x = 13,133,609,773.59
  5. Step 5: Solve for x
    x = 13,133,609,773.59/130,373.50
  6. Step 6: Final answer
    x = 100,738.34

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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.