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Finding the Fourth Proportional to 70,394.64, 97,145.68 and 38,566.56

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Solution

The fourth proportional to 70,394.64, 97,145.68 and 38,566.56 is: 53,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,394.64 : 97,145.68 = 38,566.56 : x
  2. Step 2: Convert to fraction form
    70,394.64/97,145.68 = 38,566.56/x
  3. Step 3: Cross multiply
    70,394.64x = 97,145.68 × 38,566.56
  4. Step 4: Simplify right side
    70,394.64x = 3,746,574,696.46
  5. Step 5: Solve for x
    x = 3,746,574,696.46/70,394.64
  6. Step 6: Final answer
    x = 53,222.44

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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.