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Finding the Fourth Proportional to 191,625.66, 287,313.30 and 91,782.63

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Solution

The fourth proportional to 191,625.66, 287,313.30 and 91,782.63 is: 137,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,625.66 : 287,313.30 = 91,782.63 : x
  2. Step 2: Convert to fraction form
    191,625.66/287,313.30 = 91,782.63/x
  3. Step 3: Cross multiply
    191,625.66x = 287,313.30 × 91,782.63
  4. Step 4: Simplify right side
    191,625.66x = 26,370,370,307.98
  5. Step 5: Solve for x
    x = 26,370,370,307.98/191,625.66
  6. Step 6: Final answer
    x = 137,613.98

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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.