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Finding the Fourth Proportional to 93,858, 129,524.04 and 51,416.70

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Solution

The fourth proportional to 93,858, 129,524.04 and 51,416.70 is: 70,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,858 : 129,524.04 = 51,416.70 : x
  2. Step 2: Convert to fraction form
    93,858/129,524.04 = 51,416.70/x
  3. Step 3: Cross multiply
    93,858x = 129,524.04 × 51,416.70
  4. Step 4: Simplify right side
    93,858x = 6,659,698,707.47
  5. Step 5: Solve for x
    x = 6,659,698,707.47/93,858
  6. Step 6: Final answer
    x = 70,955.05

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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.