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Finding the Fourth Proportional to 291,773.18, 437,291.60 and 156,501.77

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Solution

The fourth proportional to 291,773.18, 437,291.60 and 156,501.77 is: 234,555.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,773.18 : 437,291.60 = 156,501.77 : x
  2. Step 2: Convert to fraction form
    291,773.18/437,291.60 = 156,501.77/x
  3. Step 3: Cross multiply
    291,773.18x = 437,291.60 × 156,501.77
  4. Step 4: Simplify right side
    291,773.18x = 68,436,906,437.17
  5. Step 5: Solve for x
    x = 68,436,906,437.17/291,773.18
  6. Step 6: Final answer
    x = 234,555.16

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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.