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Finding the Fourth Proportional to 70,859.40, 97,792.88 and 52,923.28

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Solution

The fourth proportional to 70,859.40, 97,792.88 and 52,923.28 is: 73,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,859.40 : 97,792.88 = 52,923.28 : x
  2. Step 2: Convert to fraction form
    70,859.40/97,792.88 = 52,923.28/x
  3. Step 3: Cross multiply
    70,859.40x = 97,792.88 × 52,923.28
  4. Step 4: Simplify right side
    70,859.40x = 5,175,519,970.25
  5. Step 5: Solve for x
    x = 5,175,519,970.25/70,859.40
  6. Step 6: Final answer
    x = 73,039.29

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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.