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Finding the Fourth Proportional to 357,762.92, 536,638.91 and 91,521.18

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Solution

The fourth proportional to 357,762.92, 536,638.91 and 91,521.18 is: 137,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,762.92 : 536,638.91 = 91,521.18 : x
  2. Step 2: Convert to fraction form
    357,762.92/536,638.91 = 91,521.18/x
  3. Step 3: Cross multiply
    357,762.92x = 536,638.91 × 91,521.18
  4. Step 4: Simplify right side
    357,762.92x = 49,113,825,819.51
  5. Step 5: Solve for x
    x = 49,113,825,819.51/357,762.92
  6. Step 6: Final answer
    x = 137,280.37

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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.