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Finding the Fourth Proportional to 94,444.90, 141,878.55 and 78,892.90

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Solution

The fourth proportional to 94,444.90, 141,878.55 and 78,892.90 is: 118,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,444.90 : 141,878.55 = 78,892.90 : x
  2. Step 2: Convert to fraction form
    94,444.90/141,878.55 = 78,892.90/x
  3. Step 3: Cross multiply
    94,444.90x = 141,878.55 × 78,892.90
  4. Step 4: Simplify right side
    94,444.90x = 11,193,210,257.30
  5. Step 5: Solve for x
    x = 11,193,210,257.30/94,444.90
  6. Step 6: Final answer
    x = 118,515.77

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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.