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Finding the Fourth Proportional to 84,602.76, 116,698.84 and 54,427.36

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Solution

The fourth proportional to 84,602.76, 116,698.84 and 54,427.36 is: 75,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602.76 : 116,698.84 = 54,427.36 : x
  2. Step 2: Convert to fraction form
    84,602.76/116,698.84 = 54,427.36/x
  3. Step 3: Cross multiply
    84,602.76x = 116,698.84 × 54,427.36
  4. Step 4: Simplify right side
    84,602.76x = 6,351,609,776.26
  5. Step 5: Solve for x
    x = 6,351,609,776.26/84,602.76
  6. Step 6: Final answer
    x = 75,075.68

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Double scale
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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.