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Finding the Fourth Proportional to 318,348.73, 477,412.31 and 118,560.10

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Solution

The fourth proportional to 318,348.73, 477,412.31 and 118,560.10 is: 177,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,348.73 : 477,412.31 = 118,560.10 : x
  2. Step 2: Convert to fraction form
    318,348.73/477,412.31 = 118,560.10/x
  3. Step 3: Cross multiply
    318,348.73x = 477,412.31 × 118,560.10
  4. Step 4: Simplify right side
    318,348.73x = 56,602,050,622.03
  5. Step 5: Solve for x
    x = 56,602,050,622.03/318,348.73
  6. Step 6: Final answer
    x = 177,798.89

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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.