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Finding the Fourth Proportional to 111,226.87, 153,495.88 and 68,230.07

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Solution

The fourth proportional to 111,226.87, 153,495.88 and 68,230.07 is: 94,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,226.87 : 153,495.88 = 68,230.07 : x
  2. Step 2: Convert to fraction form
    111,226.87/153,495.88 = 68,230.07/x
  3. Step 3: Cross multiply
    111,226.87x = 153,495.88 × 68,230.07
  4. Step 4: Simplify right side
    111,226.87x = 10,473,033,869.63
  5. Step 5: Solve for x
    x = 10,473,033,869.63/111,226.87
  6. Step 6: Final answer
    x = 94,159.21

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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.