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Finding the Fourth Proportional to 183,630.40, 275,056.80 and 163,931.20

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Solution

The fourth proportional to 183,630.40, 275,056.80 and 163,931.20 is: 245,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,630.40 : 275,056.80 = 163,931.20 : x
  2. Step 2: Convert to fraction form
    183,630.40/275,056.80 = 163,931.20/x
  3. Step 3: Cross multiply
    183,630.40x = 275,056.80 × 163,931.20
  4. Step 4: Simplify right side
    183,630.40x = 45,090,391,292.16
  5. Step 5: Solve for x
    x = 45,090,391,292.16/183,630.40
  6. Step 6: Final answer
    x = 245,549.71

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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.