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Finding the Fourth Proportional to 88,992.80, 133,780.80 and 62,878.40

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Solution

The fourth proportional to 88,992.80, 133,780.80 and 62,878.40 is: 94,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,992.80 : 133,780.80 = 62,878.40 : x
  2. Step 2: Convert to fraction form
    88,992.80/133,780.80 = 62,878.40/x
  3. Step 3: Cross multiply
    88,992.80x = 133,780.80 × 62,878.40
  4. Step 4: Simplify right side
    88,992.80x = 8,411,922,654.72
  5. Step 5: Solve for x
    x = 8,411,922,654.72/88,992.80
  6. Step 6: Final answer
    x = 94,523.63

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1.5x scale

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.