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Finding the Fourth Proportional to 130,749.51, 180,426.72 and 73,383.51

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Solution

The fourth proportional to 130,749.51, 180,426.72 and 73,383.51 is: 101,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,749.51 : 180,426.72 = 73,383.51 : x
  2. Step 2: Convert to fraction form
    130,749.51/180,426.72 = 73,383.51/x
  3. Step 3: Cross multiply
    130,749.51x = 180,426.72 × 73,383.51
  4. Step 4: Simplify right side
    130,749.51x = 13,240,346,011.39
  5. Step 5: Solve for x
    x = 13,240,346,011.39/130,749.51
  6. Step 6: Final answer
    x = 101,264.98

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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.