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Finding the Fourth Proportional to 122,619.60, 183,929.40 and 63,473.40

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Solution

The fourth proportional to 122,619.60, 183,929.40 and 63,473.40 is: 95,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,619.60 : 183,929.40 = 63,473.40 : x
  2. Step 2: Convert to fraction form
    122,619.60/183,929.40 = 63,473.40/x
  3. Step 3: Cross multiply
    122,619.60x = 183,929.40 × 63,473.40
  4. Step 4: Simplify right side
    122,619.60x = 11,674,624,377.96
  5. Step 5: Solve for x
    x = 11,674,624,377.96/122,619.60
  6. Step 6: Final answer
    x = 95,210.10

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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.