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Finding the Fourth Proportional to 70,652.32, 105,941.04 and 62,668.96

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Solution

The fourth proportional to 70,652.32, 105,941.04 and 62,668.96 is: 93,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,652.32 : 105,941.04 = 62,668.96 : x
  2. Step 2: Convert to fraction form
    70,652.32/105,941.04 = 62,668.96/x
  3. Step 3: Cross multiply
    70,652.32x = 105,941.04 × 62,668.96
  4. Step 4: Simplify right side
    70,652.32x = 6,639,214,798.12
  5. Step 5: Solve for x
    x = 6,639,214,798.12/70,652.32
  6. Step 6: Final answer
    x = 93,970.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.