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Finding the Fourth Proportional to 240,605.10, 360,907.65 and 172,953.90

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Solution

The fourth proportional to 240,605.10, 360,907.65 and 172,953.90 is: 259,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,605.10 : 360,907.65 = 172,953.90 : x
  2. Step 2: Convert to fraction form
    240,605.10/360,907.65 = 172,953.90/x
  3. Step 3: Cross multiply
    240,605.10x = 360,907.65 × 172,953.90
  4. Step 4: Simplify right side
    240,605.10x = 62,420,385,607.34
  5. Step 5: Solve for x
    x = 62,420,385,607.34/240,605.10
  6. Step 6: Final answer
    x = 259,430.85

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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.