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Finding the Fourth Proportional to 70,293.15, 105,323.09 and 49,472.91

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Solution

The fourth proportional to 70,293.15, 105,323.09 and 49,472.91 is: 74,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,293.15 : 105,323.09 = 49,472.91 : x
  2. Step 2: Convert to fraction form
    70,293.15/105,323.09 = 49,472.91/x
  3. Step 3: Cross multiply
    70,293.15x = 105,323.09 × 49,472.91
  4. Step 4: Simplify right side
    70,293.15x = 5,210,639,505.13
  5. Step 5: Solve for x
    x = 5,210,639,505.13/70,293.15
  6. Step 6: Final answer
    x = 74,127.27

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1.5x scale

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.