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Finding the Fourth Proportional to 357,325.87, 535,985.56 and 157,646.43

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Solution

The fourth proportional to 357,325.87, 535,985.56 and 157,646.43 is: 236,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,325.87 : 535,985.56 = 157,646.43 : x
  2. Step 2: Convert to fraction form
    357,325.87/535,985.56 = 157,646.43/x
  3. Step 3: Cross multiply
    357,325.87x = 535,985.56 × 157,646.43
  4. Step 4: Simplify right side
    357,325.87x = 84,496,210,065.55
  5. Step 5: Solve for x
    x = 84,496,210,065.55/357,325.87
  6. Step 6: Final answer
    x = 236,468.21

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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.