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Finding the Fourth Proportional to 70,382.88, 97,128.40 and 38,552.93

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Solution

The fourth proportional to 70,382.88, 97,128.40 and 38,552.93 is: 53,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.88 : 97,128.40 = 38,552.93 : x
  2. Step 2: Convert to fraction form
    70,382.88/97,128.40 = 38,552.93/x
  3. Step 3: Cross multiply
    70,382.88x = 97,128.40 × 38,552.93
  4. Step 4: Simplify right side
    70,382.88x = 3,744,583,824.19
  5. Step 5: Solve for x
    x = 3,744,583,824.19/70,382.88
  6. Step 6: Final answer
    x = 53,203.05

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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.