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Finding the Fourth Proportional to 496,875.21, 745,155.93 and 159,840.72

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Solution

The fourth proportional to 496,875.21, 745,155.93 and 159,840.72 is: 239,710.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,875.21 : 745,155.93 = 159,840.72 : x
  2. Step 2: Convert to fraction form
    496,875.21/745,155.93 = 159,840.72/x
  3. Step 3: Cross multiply
    496,875.21x = 745,155.93 × 159,840.72
  4. Step 4: Simplify right side
    496,875.21x = 119,106,260,363.47
  5. Step 5: Solve for x
    x = 119,106,260,363.47/496,875.21
  6. Step 6: Final answer
    x = 239,710.61

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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.