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Finding the Fourth Proportional to 118,013.55, 177,174.68 and 70,069.68

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Solution

The fourth proportional to 118,013.55, 177,174.68 and 70,069.68 is: 105,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,013.55 : 177,174.68 = 70,069.68 : x
  2. Step 2: Convert to fraction form
    118,013.55/177,174.68 = 70,069.68/x
  3. Step 3: Cross multiply
    118,013.55x = 177,174.68 × 70,069.68
  4. Step 4: Simplify right side
    118,013.55x = 12,414,573,399.46
  5. Step 5: Solve for x
    x = 12,414,573,399.46/118,013.55
  6. Step 6: Final answer
    x = 105,196.17

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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.