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Finding the Fourth Proportional to 118,048.53, 177,004.86 and 70,035.64

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Solution

The fourth proportional to 118,048.53, 177,004.86 and 70,035.64 is: 105,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,048.53 : 177,004.86 = 70,035.64 : x
  2. Step 2: Convert to fraction form
    118,048.53/177,004.86 = 70,035.64/x
  3. Step 3: Cross multiply
    118,048.53x = 177,004.86 × 70,035.64
  4. Step 4: Simplify right side
    118,048.53x = 12,396,648,653.21
  5. Step 5: Solve for x
    x = 12,396,648,653.21/118,048.53
  6. Step 6: Final answer
    x = 105,013.16

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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.