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Finding the Fourth Proportional to 318,752.80, 478,017.68 and 94,053.60

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Solution

The fourth proportional to 318,752.80, 478,017.68 and 94,053.60 is: 141,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,752.80 : 478,017.68 = 94,053.60 : x
  2. Step 2: Convert to fraction form
    318,752.80/478,017.68 = 94,053.60/x
  3. Step 3: Cross multiply
    318,752.80x = 478,017.68 × 94,053.60
  4. Step 4: Simplify right side
    318,752.80x = 44,959,283,667.65
  5. Step 5: Solve for x
    x = 44,959,283,667.65/318,752.80
  6. Step 6: Final answer
    x = 141,047.49

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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.