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Finding the Fourth Proportional to 242,720.80, 364,858.80 and 173,082.40

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Solution

The fourth proportional to 242,720.80, 364,858.80 and 173,082.40 is: 260,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,720.80 : 364,858.80 = 173,082.40 : x
  2. Step 2: Convert to fraction form
    242,720.80/364,858.80 = 173,082.40/x
  3. Step 3: Cross multiply
    242,720.80x = 364,858.80 × 173,082.40
  4. Step 4: Simplify right side
    242,720.80x = 63,150,636,765.12
  5. Step 5: Solve for x
    x = 63,150,636,765.12/242,720.80
  6. Step 6: Final answer
    x = 260,178.10

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1.5x scale

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.