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Finding the Fourth Proportional to 70,334.46, 105,275.16 and 46,338.58

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Solution

The fourth proportional to 70,334.46, 105,275.16 and 46,338.58 is: 69,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,334.46 : 105,275.16 = 46,338.58 : x
  2. Step 2: Convert to fraction form
    70,334.46/105,275.16 = 46,338.58/x
  3. Step 3: Cross multiply
    70,334.46x = 105,275.16 × 46,338.58
  4. Step 4: Simplify right side
    70,334.46x = 4,878,300,963.09
  5. Step 5: Solve for x
    x = 4,878,300,963.09/70,334.46
  6. Step 6: Final answer
    x = 69,358.62

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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.