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Finding the Fourth Proportional to 191,877.85, 287,790.85 and 51,644.89

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Solution

The fourth proportional to 191,877.85, 287,790.85 and 51,644.89 is: 77,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,877.85 : 287,790.85 = 51,644.89 : x
  2. Step 2: Convert to fraction form
    191,877.85/287,790.85 = 51,644.89/x
  3. Step 3: Cross multiply
    191,877.85x = 287,790.85 × 51,644.89
  4. Step 4: Simplify right side
    191,877.85x = 14,862,926,791.26
  5. Step 5: Solve for x
    x = 14,862,926,791.26/191,877.85
  6. Step 6: Final answer
    x = 77,460.36

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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.