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Finding the Fourth Proportional to 225,603.14, 311,332.32 and 134,962.92

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Solution

The fourth proportional to 225,603.14, 311,332.32 and 134,962.92 is: 186,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,603.14 : 311,332.32 = 134,962.92 : x
  2. Step 2: Convert to fraction form
    225,603.14/311,332.32 = 134,962.92/x
  3. Step 3: Cross multiply
    225,603.14x = 311,332.32 × 134,962.92
  4. Step 4: Simplify right side
    225,603.14x = 42,018,318,997.57
  5. Step 5: Solve for x
    x = 42,018,318,997.57/225,603.14
  6. Step 6: Final answer
    x = 186,248.82

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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.