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Finding the Fourth Proportional to 220,955.04, 304,916.40 and 120,353.04

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Solution

The fourth proportional to 220,955.04, 304,916.40 and 120,353.04 is: 166,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,955.04 : 304,916.40 = 120,353.04 : x
  2. Step 2: Convert to fraction form
    220,955.04/304,916.40 = 120,353.04/x
  3. Step 3: Cross multiply
    220,955.04x = 304,916.40 × 120,353.04
  4. Step 4: Simplify right side
    220,955.04x = 36,697,615,685.86
  5. Step 5: Solve for x
    x = 36,697,615,685.86/220,955.04
  6. Step 6: Final answer
    x = 166,086.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.