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Finding the Fourth Proportional to 70,532.43, 97,361.85 and 47,881.55

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Solution

The fourth proportional to 70,532.43, 97,361.85 and 47,881.55 is: 66,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,532.43 : 97,361.85 = 47,881.55 : x
  2. Step 2: Convert to fraction form
    70,532.43/97,361.85 = 47,881.55/x
  3. Step 3: Cross multiply
    70,532.43x = 97,361.85 × 47,881.55
  4. Step 4: Simplify right side
    70,532.43x = 4,661,835,802.06
  5. Step 5: Solve for x
    x = 4,661,835,802.06/70,532.43
  6. Step 6: Final answer
    x = 66,094.93

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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.