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Finding the Fourth Proportional to 488,617.99, 732,916.55 and 133,632.01

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Solution

The fourth proportional to 488,617.99, 732,916.55 and 133,632.01 is: 200,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,617.99 : 732,916.55 = 133,632.01 : x
  2. Step 2: Convert to fraction form
    488,617.99/732,916.55 = 133,632.01/x
  3. Step 3: Cross multiply
    488,617.99x = 732,916.55 × 133,632.01
  4. Step 4: Simplify right side
    488,617.99x = 97,941,107,406.02
  5. Step 5: Solve for x
    x = 97,941,107,406.02/488,617.99
  6. Step 6: Final answer
    x = 200,445.15

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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.