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Finding the Fourth Proportional to 402,755.22, 604,047.71 and 118,368.61

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Solution

The fourth proportional to 402,755.22, 604,047.71 and 118,368.61 is: 177,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,755.22 : 604,047.71 = 118,368.61 : x
  2. Step 2: Convert to fraction form
    402,755.22/604,047.71 = 118,368.61/x
  3. Step 3: Cross multiply
    402,755.22x = 604,047.71 × 118,368.61
  4. Step 4: Simplify right side
    402,755.22x = 71,500,286,592.19
  5. Step 5: Solve for x
    x = 71,500,286,592.19/402,755.22
  6. Step 6: Final answer
    x = 177,527.90

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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.