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Finding the Fourth Proportional to 357,501.38, 536,251.89 and 91,261.81

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Solution

The fourth proportional to 357,501.38, 536,251.89 and 91,261.81 is: 136,892.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,501.38 : 536,251.89 = 91,261.81 : x
  2. Step 2: Convert to fraction form
    357,501.38/536,251.89 = 91,261.81/x
  3. Step 3: Cross multiply
    357,501.38x = 536,251.89 × 91,261.81
  4. Step 4: Simplify right side
    357,501.38x = 48,939,316,093.45
  5. Step 5: Solve for x
    x = 48,939,316,093.45/357,501.38
  6. Step 6: Final answer
    x = 136,892.66

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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.