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Finding the Fourth Proportional to 251,459.72, 346,929.46 and 142,552.38

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Solution

The fourth proportional to 251,459.72, 346,929.46 and 142,552.38 is: 196,674.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,459.72 : 346,929.46 = 142,552.38 : x
  2. Step 2: Convert to fraction form
    251,459.72/346,929.46 = 142,552.38/x
  3. Step 3: Cross multiply
    251,459.72x = 346,929.46 × 142,552.38
  4. Step 4: Simplify right side
    251,459.72x = 49,455,620,215.11
  5. Step 5: Solve for x
    x = 49,455,620,215.11/251,459.72
  6. Step 6: Final answer
    x = 196,674.12

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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.