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Finding the Fourth Proportional to 357,883.80, 536,824.35 and 91,643.96

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Solution

The fourth proportional to 357,883.80, 536,824.35 and 91,643.96 is: 137,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,883.80 : 536,824.35 = 91,643.96 : x
  2. Step 2: Convert to fraction form
    357,883.80/536,824.35 = 91,643.96/x
  3. Step 3: Cross multiply
    357,883.80x = 536,824.35 × 91,643.96
  4. Step 4: Simplify right side
    357,883.80x = 49,196,706,574.30
  5. Step 5: Solve for x
    x = 49,196,706,574.30/357,883.80
  6. Step 6: Final answer
    x = 137,465.59

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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.