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Finding the Fourth Proportional to 130,040.82, 179,456.54 and 70,424.82

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Solution

The fourth proportional to 130,040.82, 179,456.54 and 70,424.82 is: 97,186.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,040.82 : 179,456.54 = 70,424.82 : x
  2. Step 2: Convert to fraction form
    130,040.82/179,456.54 = 70,424.82/x
  3. Step 3: Cross multiply
    130,040.82x = 179,456.54 × 70,424.82
  4. Step 4: Simplify right side
    130,040.82x = 12,638,194,175.20
  5. Step 5: Solve for x
    x = 12,638,194,175.20/130,040.82
  6. Step 6: Final answer
    x = 97,186.36

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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.