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Finding the Fourth Proportional to 294,281.10, 441,421.65 and 72,665.10

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Solution

The fourth proportional to 294,281.10, 441,421.65 and 72,665.10 is: 108,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,281.10 : 441,421.65 = 72,665.10 : x
  2. Step 2: Convert to fraction form
    294,281.10/441,421.65 = 72,665.10/x
  3. Step 3: Cross multiply
    294,281.10x = 441,421.65 × 72,665.10
  4. Step 4: Simplify right side
    294,281.10x = 32,075,948,339.42
  5. Step 5: Solve for x
    x = 32,075,948,339.42/294,281.10
  6. Step 6: Final answer
    x = 108,997.65

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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.