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Finding the Fourth Proportional to 248,574.72, 343,037.44 and 135,397.12

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Solution

The fourth proportional to 248,574.72, 343,037.44 and 135,397.12 is: 186,850.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,574.72 : 343,037.44 = 135,397.12 : x
  2. Step 2: Convert to fraction form
    248,574.72/343,037.44 = 135,397.12/x
  3. Step 3: Cross multiply
    248,574.72x = 343,037.44 × 135,397.12
  4. Step 4: Simplify right side
    248,574.72x = 46,446,281,428.17
  5. Step 5: Solve for x
    x = 46,446,281,428.17/248,574.72
  6. Step 6: Final answer
    x = 186,850.38

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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.