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Finding the Fourth Proportional to 335,969.94, 503,779.95 and 99,280.65

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Solution

The fourth proportional to 335,969.94, 503,779.95 and 99,280.65 is: 148,869.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,969.94 : 503,779.95 = 99,280.65 : x
  2. Step 2: Convert to fraction form
    335,969.94/503,779.95 = 99,280.65/x
  3. Step 3: Cross multiply
    335,969.94x = 503,779.95 × 99,280.65
  4. Step 4: Simplify right side
    335,969.94x = 50,015,600,892.97
  5. Step 5: Solve for x
    x = 50,015,600,892.97/335,969.94
  6. Step 6: Final answer
    x = 148,869.27

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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.