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Finding the Fourth Proportional to 70,566.96, 97,391.19 and 40,348.08

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Solution

The fourth proportional to 70,566.96, 97,391.19 and 40,348.08 is: 55,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,566.96 : 97,391.19 = 40,348.08 : x
  2. Step 2: Convert to fraction form
    70,566.96/97,391.19 = 40,348.08/x
  3. Step 3: Cross multiply
    70,566.96x = 97,391.19 × 40,348.08
  4. Step 4: Simplify right side
    70,566.96x = 3,929,547,525.42
  5. Step 5: Solve for x
    x = 3,929,547,525.42/70,566.96
  6. Step 6: Final answer
    x = 55,685.37

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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.