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Finding the Fourth Proportional to 434,530.70, 651,763.65 and 181,745.90

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Solution

The fourth proportional to 434,530.70, 651,763.65 and 181,745.90 is: 272,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,530.70 : 651,763.65 = 181,745.90 : x
  2. Step 2: Convert to fraction form
    434,530.70/651,763.65 = 181,745.90/x
  3. Step 3: Cross multiply
    434,530.70x = 651,763.65 × 181,745.90
  4. Step 4: Simplify right side
    434,530.70x = 118,455,371,156.54
  5. Step 5: Solve for x
    x = 118,455,371,156.54/434,530.70
  6. Step 6: Final answer
    x = 272,605.30

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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.