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Finding the Fourth Proportional to 111,279.99, 153,510.40 and 73,034.23

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Solution

The fourth proportional to 111,279.99, 153,510.40 and 73,034.23 is: 100,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,279.99 : 153,510.40 = 73,034.23 : x
  2. Step 2: Convert to fraction form
    111,279.99/153,510.40 = 73,034.23/x
  3. Step 3: Cross multiply
    111,279.99x = 153,510.40 × 73,034.23
  4. Step 4: Simplify right side
    111,279.99x = 11,211,513,733.36
  5. Step 5: Solve for x
    x = 11,211,513,733.36/111,279.99
  6. Step 6: Final answer
    x = 100,750.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.