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Finding the Fourth Proportional to 410,036.76, 615,051.48 and 129,554.04

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Solution

The fourth proportional to 410,036.76, 615,051.48 and 129,554.04 is: 194,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,036.76 : 615,051.48 = 129,554.04 : x
  2. Step 2: Convert to fraction form
    410,036.76/615,051.48 = 129,554.04/x
  3. Step 3: Cross multiply
    410,036.76x = 615,051.48 × 129,554.04
  4. Step 4: Simplify right side
    410,036.76x = 79,682,404,041.98
  5. Step 5: Solve for x
    x = 79,682,404,041.98/410,036.76
  6. Step 6: Final answer
    x = 194,329.90

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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.