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Finding the Fourth Proportional to 235,673.42, 353,565.50 and 77,901.87

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Solution

The fourth proportional to 235,673.42, 353,565.50 and 77,901.87 is: 116,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,673.42 : 353,565.50 = 77,901.87 : x
  2. Step 2: Convert to fraction form
    235,673.42/353,565.50 = 77,901.87/x
  3. Step 3: Cross multiply
    235,673.42x = 353,565.50 × 77,901.87
  4. Step 4: Simplify right side
    235,673.42x = 27,543,413,227.98
  5. Step 5: Solve for x
    x = 27,543,413,227.98/235,673.42
  6. Step 6: Final answer
    x = 116,871.11

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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.