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Finding the Fourth Proportional to 341,775.90, 512,688.15 and 105,118.20

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Solution

The fourth proportional to 341,775.90, 512,688.15 and 105,118.20 is: 157,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,775.90 : 512,688.15 = 105,118.20 : x
  2. Step 2: Convert to fraction form
    341,775.90/512,688.15 = 105,118.20/x
  3. Step 3: Cross multiply
    341,775.90x = 512,688.15 × 105,118.20
  4. Step 4: Simplify right side
    341,775.90x = 53,892,855,489.33
  5. Step 5: Solve for x
    x = 53,892,855,489.33/341,775.90
  6. Step 6: Final answer
    x = 157,684.77

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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.