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Finding the Fourth Proportional to 130,041.82, 179,457.92 and 70,425.82

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Solution

The fourth proportional to 130,041.82, 179,457.92 and 70,425.82 is: 97,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,041.82 : 179,457.92 = 70,425.82 : x
  2. Step 2: Convert to fraction form
    130,041.82/179,457.92 = 70,425.82/x
  3. Step 3: Cross multiply
    130,041.82x = 179,457.92 × 70,425.82
  4. Step 4: Simplify right side
    130,041.82x = 12,638,471,171.49
  5. Step 5: Solve for x
    x = 12,638,471,171.49/130,041.82
  6. Step 6: Final answer
    x = 97,187.74

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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.