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Finding the Fourth Proportional to 94,118.80, 129,890.76 and 62,232.40

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Solution

The fourth proportional to 94,118.80, 129,890.76 and 62,232.40 is: 85,885.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,118.80 : 129,890.76 = 62,232.40 : x
  2. Step 2: Convert to fraction form
    94,118.80/129,890.76 = 62,232.40/x
  3. Step 3: Cross multiply
    94,118.80x = 129,890.76 × 62,232.40
  4. Step 4: Simplify right side
    94,118.80x = 8,083,413,732.62
  5. Step 5: Solve for x
    x = 8,083,413,732.62/94,118.80
  6. Step 6: Final answer
    x = 85,885.22

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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.