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Finding the Fourth Proportional to 130,167, 179,630.58 and 70,551

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Solution

The fourth proportional to 130,167, 179,630.58 and 70,551 is: 97,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,167 : 179,630.58 = 70,551 : x
  2. Step 2: Convert to fraction form
    130,167/179,630.58 = 70,551/x
  3. Step 3: Cross multiply
    130,167x = 179,630.58 × 70,551
  4. Step 4: Simplify right side
    130,167x = 12,673,117,049.58
  5. Step 5: Solve for x
    x = 12,673,117,049.58/130,167
  6. Step 6: Final answer
    x = 97,360.45

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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.