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Finding the Fourth Proportional to 91,953.68, 137,938.50 and 25,393.86

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Solution

The fourth proportional to 91,953.68, 137,938.50 and 25,393.86 is: 38,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,953.68 : 137,938.50 = 25,393.86 : x
  2. Step 2: Convert to fraction form
    91,953.68/137,938.50 = 25,393.86/x
  3. Step 3: Cross multiply
    91,953.68x = 137,938.50 × 25,393.86
  4. Step 4: Simplify right side
    91,953.68x = 3,502,790,957.61
  5. Step 5: Solve for x
    x = 3,502,790,957.61/91,953.68
  6. Step 6: Final answer
    x = 38,093.00

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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.