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Finding the Fourth Proportional to 225,603.44, 311,332.80 and 134,963.16

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Solution

The fourth proportional to 225,603.44, 311,332.80 and 134,963.16 is: 186,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,603.44 : 311,332.80 = 134,963.16 : x
  2. Step 2: Convert to fraction form
    225,603.44/311,332.80 = 134,963.16/x
  3. Step 3: Cross multiply
    225,603.44x = 311,332.80 × 134,963.16
  4. Step 4: Simplify right side
    225,603.44x = 42,018,458,499.65
  5. Step 5: Solve for x
    x = 42,018,458,499.65/225,603.44
  6. Step 6: Final answer
    x = 186,249.19

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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.