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Finding the Fourth Proportional to 78,894.90, 108,880.79 and 44,914.38

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Solution

The fourth proportional to 78,894.90, 108,880.79 and 44,914.38 is: 61,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894.90 : 108,880.79 = 44,914.38 : x
  2. Step 2: Convert to fraction form
    78,894.90/108,880.79 = 44,914.38/x
  3. Step 3: Cross multiply
    78,894.90x = 108,880.79 × 44,914.38
  4. Step 4: Simplify right side
    78,894.90x = 4,890,312,952.19
  5. Step 5: Solve for x
    x = 4,890,312,952.19/78,894.90
  6. Step 6: Final answer
    x = 61,985.16

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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.