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Finding the Fourth Proportional to 310,955.40, 466,208.64 and 121,255.02

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Solution

The fourth proportional to 310,955.40, 466,208.64 and 121,255.02 is: 181,795.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,955.40 : 466,208.64 = 121,255.02 : x
  2. Step 2: Convert to fraction form
    310,955.40/466,208.64 = 121,255.02/x
  3. Step 3: Cross multiply
    310,955.40x = 466,208.64 × 121,255.02
  4. Step 4: Simplify right side
    310,955.40x = 56,530,137,967.37
  5. Step 5: Solve for x
    x = 56,530,137,967.37/310,955.40
  6. Step 6: Final answer
    x = 181,795.00

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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.