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Finding the Fourth Proportional to 84,481.52, 116,460.25 and 64,303.25

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Solution

The fourth proportional to 84,481.52, 116,460.25 and 64,303.25 is: 88,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,481.52 : 116,460.25 = 64,303.25 : x
  2. Step 2: Convert to fraction form
    84,481.52/116,460.25 = 64,303.25/x
  3. Step 3: Cross multiply
    84,481.52x = 116,460.25 × 64,303.25
  4. Step 4: Simplify right side
    84,481.52x = 7,488,771,827.75
  5. Step 5: Solve for x
    x = 7,488,771,827.75/84,481.52
  6. Step 6: Final answer
    x = 88,643.91

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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.