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Finding the Fourth Proportional to 111,216.88, 153,490.32 and 63,477.44

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Solution

The fourth proportional to 111,216.88, 153,490.32 and 63,477.44 is: 87,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,216.88 : 153,490.32 = 63,477.44 : x
  2. Step 2: Convert to fraction form
    111,216.88/153,490.32 = 63,477.44/x
  3. Step 3: Cross multiply
    111,216.88x = 153,490.32 × 63,477.44
  4. Step 4: Simplify right side
    111,216.88x = 9,743,172,578.38
  5. Step 5: Solve for x
    x = 9,743,172,578.38/111,216.88
  6. Step 6: Final answer
    x = 87,605.16

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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.