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Finding the Fourth Proportional to 264,428.71, 364,909.53 and 143,567.55

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Solution

The fourth proportional to 264,428.71, 364,909.53 and 143,567.55 is: 198,122.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,428.71 : 364,909.53 = 143,567.55 : x
  2. Step 2: Convert to fraction form
    264,428.71/364,909.53 = 143,567.55/x
  3. Step 3: Cross multiply
    264,428.71x = 364,909.53 × 143,567.55
  4. Step 4: Simplify right side
    264,428.71x = 52,389,167,193.75
  5. Step 5: Solve for x
    x = 52,389,167,193.75/264,428.71
  6. Step 6: Final answer
    x = 198,122.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.