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Finding the Fourth Proportional to 99,567.63, 137,403.27 and 54,855.63

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Solution

The fourth proportional to 99,567.63, 137,403.27 and 54,855.63 is: 75,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,567.63 : 137,403.27 = 54,855.63 : x
  2. Step 2: Convert to fraction form
    99,567.63/137,403.27 = 54,855.63/x
  3. Step 3: Cross multiply
    99,567.63x = 137,403.27 × 54,855.63
  4. Step 4: Simplify right side
    99,567.63x = 7,537,342,939.91
  5. Step 5: Solve for x
    x = 7,537,342,939.91/99,567.63
  6. Step 6: Final answer
    x = 75,700.74

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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.