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Finding the Fourth Proportional to 218,989.59, 328,483.65 and 52,777.59

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Solution

The fourth proportional to 218,989.59, 328,483.65 and 52,777.59 is: 79,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,989.59 : 328,483.65 = 52,777.59 : x
  2. Step 2: Convert to fraction form
    218,989.59/328,483.65 = 52,777.59/x
  3. Step 3: Cross multiply
    218,989.59x = 328,483.65 × 52,777.59
  4. Step 4: Simplify right side
    218,989.59x = 17,336,575,401.40
  5. Step 5: Solve for x
    x = 17,336,575,401.40/218,989.59
  6. Step 6: Final answer
    x = 79,166.21

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1.5x scale

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.