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Finding the Fourth Proportional to 70,508.64, 105,834.24 and 62,242.32

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Solution

The fourth proportional to 70,508.64, 105,834.24 and 62,242.32 is: 93,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,508.64 : 105,834.24 = 62,242.32 : x
  2. Step 2: Convert to fraction form
    70,508.64/105,834.24 = 62,242.32/x
  3. Step 3: Cross multiply
    70,508.64x = 105,834.24 × 62,242.32
  4. Step 4: Simplify right side
    70,508.64x = 6,587,368,633.04
  5. Step 5: Solve for x
    x = 6,587,368,633.04/70,508.64
  6. Step 6: Final answer
    x = 93,426.40

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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.