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Finding the Fourth Proportional to 94,472, 130,219.42 and 63,835.54

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Solution

The fourth proportional to 94,472, 130,219.42 and 63,835.54 is: 87,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,472 : 130,219.42 = 63,835.54 : x
  2. Step 2: Convert to fraction form
    94,472/130,219.42 = 63,835.54/x
  3. Step 3: Cross multiply
    94,472x = 130,219.42 × 63,835.54
  4. Step 4: Simplify right side
    94,472x = 8,312,626,994.19
  5. Step 5: Solve for x
    x = 8,312,626,994.19/94,472
  6. Step 6: Final answer
    x = 87,990.38

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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.