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Finding the Fourth Proportional to 402,597.73, 603,899.16 and 118,287.10

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Solution

The fourth proportional to 402,597.73, 603,899.16 and 118,287.10 is: 177,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,597.73 : 603,899.16 = 118,287.10 : x
  2. Step 2: Convert to fraction form
    402,597.73/603,899.16 = 118,287.10/x
  3. Step 3: Cross multiply
    402,597.73x = 603,899.16 × 118,287.10
  4. Step 4: Simplify right side
    402,597.73x = 71,433,480,328.84
  5. Step 5: Solve for x
    x = 71,433,480,328.84/402,597.73
  6. Step 6: Final answer
    x = 177,431.40

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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.