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Finding the Fourth Proportional to 242,169.21, 363,250.16 and 108,955.40

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Solution

The fourth proportional to 242,169.21, 363,250.16 and 108,955.40 is: 163,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,169.21 : 363,250.16 = 108,955.40 : x
  2. Step 2: Convert to fraction form
    242,169.21/363,250.16 = 108,955.40/x
  3. Step 3: Cross multiply
    242,169.21x = 363,250.16 × 108,955.40
  4. Step 4: Simplify right side
    242,169.21x = 39,578,066,482.86
  5. Step 5: Solve for x
    x = 39,578,066,482.86/242,169.21
  6. Step 6: Final answer
    x = 163,431.46

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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.