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Finding the Fourth Proportional to 247,663.35, 341,779.40 and 140,230.51

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Solution

The fourth proportional to 247,663.35, 341,779.40 and 140,230.51 is: 193,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,663.35 : 341,779.40 = 140,230.51 : x
  2. Step 2: Convert to fraction form
    247,663.35/341,779.40 = 140,230.51/x
  3. Step 3: Cross multiply
    247,663.35x = 341,779.40 × 140,230.51
  4. Step 4: Simplify right side
    247,663.35x = 47,927,898,868.34
  5. Step 5: Solve for x
    x = 47,927,898,868.34/247,663.35
  6. Step 6: Final answer
    x = 193,520.35

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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.