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Finding the Fourth Proportional to 84,699.46, 116,869.80 and 48,876.40

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Solution

The fourth proportional to 84,699.46, 116,869.80 and 48,876.40 is: 67,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,699.46 : 116,869.80 = 48,876.40 : x
  2. Step 2: Convert to fraction form
    84,699.46/116,869.80 = 48,876.40/x
  3. Step 3: Cross multiply
    84,699.46x = 116,869.80 × 48,876.40
  4. Step 4: Simplify right side
    84,699.46x = 5,712,175,092.72
  5. Step 5: Solve for x
    x = 5,712,175,092.72/84,699.46
  6. Step 6: Final answer
    x = 67,440.51

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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.