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Finding the Fourth Proportional to 111,868.68, 167,802.24 and 45,307.80

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Solution

The fourth proportional to 111,868.68, 167,802.24 and 45,307.80 is: 67,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,868.68 : 167,802.24 = 45,307.80 : x
  2. Step 2: Convert to fraction form
    111,868.68/167,802.24 = 45,307.80/x
  3. Step 3: Cross multiply
    111,868.68x = 167,802.24 × 45,307.80
  4. Step 4: Simplify right side
    111,868.68x = 7,602,750,329.47
  5. Step 5: Solve for x
    x = 7,602,750,329.47/111,868.68
  6. Step 6: Final answer
    x = 67,961.38

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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.