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Finding the Fourth Proportional to 357,570.64, 536,403.32 and 120,981.04

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Solution

The fourth proportional to 357,570.64, 536,403.32 and 120,981.04 is: 181,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,570.64 : 536,403.32 = 120,981.04 : x
  2. Step 2: Convert to fraction form
    357,570.64/536,403.32 = 120,981.04/x
  3. Step 3: Cross multiply
    357,570.64x = 536,403.32 × 120,981.04
  4. Step 4: Simplify right side
    357,570.64x = 64,894,631,513.05
  5. Step 5: Solve for x
    x = 64,894,631,513.05/357,570.64
  6. Step 6: Final answer
    x = 181,487.58

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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.