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Finding the Fourth Proportional to 70,397.60, 97,148.40 and 38,568.48

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Solution

The fourth proportional to 70,397.60, 97,148.40 and 38,568.48 is: 53,224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.60 : 97,148.40 = 38,568.48 : x
  2. Step 2: Convert to fraction form
    70,397.60/97,148.40 = 38,568.48/x
  3. Step 3: Cross multiply
    70,397.60x = 97,148.40 × 38,568.48
  4. Step 4: Simplify right side
    70,397.60x = 3,746,866,122.43
  5. Step 5: Solve for x
    x = 3,746,866,122.43/70,397.60
  6. Step 6: Final answer
    x = 53,224.34

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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.