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Finding the Fourth Proportional to 357,502.84, 536,253.78 and 91,263.34

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Solution

The fourth proportional to 357,502.84, 536,253.78 and 91,263.34 is: 136,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,502.84 : 536,253.78 = 91,263.34 : x
  2. Step 2: Convert to fraction form
    357,502.84/536,253.78 = 91,263.34/x
  3. Step 3: Cross multiply
    357,502.84x = 536,253.78 × 91,263.34
  4. Step 4: Simplify right side
    357,502.84x = 48,940,311,050.43
  5. Step 5: Solve for x
    x = 48,940,311,050.43/357,502.84
  6. Step 6: Final answer
    x = 136,894.89

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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.