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Finding the Fourth Proportional to 70,367.52, 97,095.60 and 40,152.90

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Solution

The fourth proportional to 70,367.52, 97,095.60 and 40,152.90 is: 55,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,367.52 : 97,095.60 = 40,152.90 : x
  2. Step 2: Convert to fraction form
    70,367.52/97,095.60 = 40,152.90/x
  3. Step 3: Cross multiply
    70,367.52x = 97,095.60 × 40,152.90
  4. Step 4: Simplify right side
    70,367.52x = 3,898,669,917.24
  5. Step 5: Solve for x
    x = 3,898,669,917.24/70,367.52
  6. Step 6: Final answer
    x = 55,404.40

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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.