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Finding the Fourth Proportional to 195,428.69, 292,749.92 and 148,124.69

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Solution

The fourth proportional to 195,428.69, 292,749.92 and 148,124.69 is: 221,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,428.69 : 292,749.92 = 148,124.69 : x
  2. Step 2: Convert to fraction form
    195,428.69/292,749.92 = 148,124.69/x
  3. Step 3: Cross multiply
    195,428.69x = 292,749.92 × 148,124.69
  4. Step 4: Simplify right side
    195,428.69x = 43,363,490,406.90
  5. Step 5: Solve for x
    x = 43,363,490,406.90/195,428.69
  6. Step 6: Final answer
    x = 221,889.07

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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.