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Finding the Fourth Proportional to 106,630.17, 147,197.54 and 70,352.97

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Solution

The fourth proportional to 106,630.17, 147,197.54 and 70,352.97 is: 97,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,630.17 : 147,197.54 = 70,352.97 : x
  2. Step 2: Convert to fraction form
    106,630.17/147,197.54 = 70,352.97/x
  3. Step 3: Cross multiply
    106,630.17x = 147,197.54 × 70,352.97
  4. Step 4: Simplify right side
    106,630.17x = 10,355,783,763.93
  5. Step 5: Solve for x
    x = 10,355,783,763.93/106,630.17
  6. Step 6: Final answer
    x = 97,118.70

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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.