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Finding the Fourth Proportional to 84,909.60, 127,364.40 and 22,580.10

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Solution

The fourth proportional to 84,909.60, 127,364.40 and 22,580.10 is: 33,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,909.60 : 127,364.40 = 22,580.10 : x
  2. Step 2: Convert to fraction form
    84,909.60/127,364.40 = 22,580.10/x
  3. Step 3: Cross multiply
    84,909.60x = 127,364.40 × 22,580.10
  4. Step 4: Simplify right side
    84,909.60x = 2,875,900,888.44
  5. Step 5: Solve for x
    x = 2,875,900,888.44/84,909.60
  6. Step 6: Final answer
    x = 33,870.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.