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Finding the Fourth Proportional to 84,196.96, 116,211.76 and 48,407.76

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Solution

The fourth proportional to 84,196.96, 116,211.76 and 48,407.76 is: 66,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,196.96 : 116,211.76 = 48,407.76 : x
  2. Step 2: Convert to fraction form
    84,196.96/116,211.76 = 48,407.76/x
  3. Step 3: Cross multiply
    84,196.96x = 116,211.76 × 48,407.76
  4. Step 4: Simplify right side
    84,196.96x = 5,625,550,987.26
  5. Step 5: Solve for x
    x = 5,625,550,987.26/84,196.96
  6. Step 6: Final answer
    x = 66,814.18

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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.