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Finding the Fourth Proportional to 327,970.60, 492,071.10 and 117,615.40

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Solution

The fourth proportional to 327,970.60, 492,071.10 and 117,615.40 is: 176,464.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,970.60 : 492,071.10 = 117,615.40 : x
  2. Step 2: Convert to fraction form
    327,970.60/492,071.10 = 117,615.40/x
  3. Step 3: Cross multiply
    327,970.60x = 492,071.10 × 117,615.40
  4. Step 4: Simplify right side
    327,970.60x = 57,875,139,254.94
  5. Step 5: Solve for x
    x = 57,875,139,254.94/327,970.60
  6. Step 6: Final answer
    x = 176,464.41

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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.