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Finding the Fourth Proportional to 357,502.84, 536,253.76 and 91,263.36

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Solution

The fourth proportional to 357,502.84, 536,253.76 and 91,263.36 is: 136,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,502.84 : 536,253.76 = 91,263.36 : x
  2. Step 2: Convert to fraction form
    357,502.84/536,253.76 = 91,263.36/x
  3. Step 3: Cross multiply
    357,502.84x = 536,253.76 × 91,263.36
  4. Step 4: Simplify right side
    357,502.84x = 48,940,319,950.23
  5. Step 5: Solve for x
    x = 48,940,319,950.23/357,502.84
  6. Step 6: Final answer
    x = 136,894.91

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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.