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Finding the Fourth Proportional to 215,181.50, 296,950.47 and 125,757.50

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Solution

The fourth proportional to 215,181.50, 296,950.47 and 125,757.50 is: 173,545.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,181.50 : 296,950.47 = 125,757.50 : x
  2. Step 2: Convert to fraction form
    215,181.50/296,950.47 = 125,757.50/x
  3. Step 3: Cross multiply
    215,181.50x = 296,950.47 × 125,757.50
  4. Step 4: Simplify right side
    215,181.50x = 37,343,748,731.03
  5. Step 5: Solve for x
    x = 37,343,748,731.03/215,181.50
  6. Step 6: Final answer
    x = 173,545.35

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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.