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Finding the Fourth Proportional to 264,421.61, 364,899.74 and 143,560.47

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Solution

The fourth proportional to 264,421.61, 364,899.74 and 143,560.47 is: 198,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,421.61 : 364,899.74 = 143,560.47 : x
  2. Step 2: Convert to fraction form
    264,421.61/364,899.74 = 143,560.47/x
  3. Step 3: Cross multiply
    264,421.61x = 364,899.74 × 143,560.47
  4. Step 4: Simplify right side
    264,421.61x = 52,385,177,459.48
  5. Step 5: Solve for x
    x = 52,385,177,459.48/264,421.61
  6. Step 6: Final answer
    x = 198,112.32

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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.