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Finding the Fourth Proportional to 161,531.60, 242,527.80 and 122,363.60

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Solution

The fourth proportional to 161,531.60, 242,527.80 and 122,363.60 is: 183,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,531.60 : 242,527.80 = 122,363.60 : x
  2. Step 2: Convert to fraction form
    161,531.60/242,527.80 = 122,363.60/x
  3. Step 3: Cross multiply
    161,531.60x = 242,527.80 × 122,363.60
  4. Step 4: Simplify right side
    161,531.60x = 29,676,574,708.08
  5. Step 5: Solve for x
    x = 29,676,574,708.08/161,531.60
  6. Step 6: Final answer
    x = 183,719.93

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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.