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Finding the Fourth Proportional to 357,568.32, 536,351.94 and 91,328.76

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Solution

The fourth proportional to 357,568.32, 536,351.94 and 91,328.76 is: 136,993.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,568.32 : 536,351.94 = 91,328.76 : x
  2. Step 2: Convert to fraction form
    357,568.32/536,351.94 = 91,328.76/x
  3. Step 3: Cross multiply
    357,568.32x = 536,351.94 × 91,328.76
  4. Step 4: Simplify right side
    357,568.32x = 48,984,357,603.79
  5. Step 5: Solve for x
    x = 48,984,357,603.79/357,568.32
  6. Step 6: Final answer
    x = 136,993.00

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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.