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Finding the Fourth Proportional to 191,695.90, 287,597.19 and 83,634.72

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Solution

The fourth proportional to 191,695.90, 287,597.19 and 83,634.72 is: 125,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,695.90 : 287,597.19 = 83,634.72 : x
  2. Step 2: Convert to fraction form
    191,695.90/287,597.19 = 83,634.72/x
  3. Step 3: Cross multiply
    191,695.90x = 287,597.19 × 83,634.72
  4. Step 4: Simplify right side
    191,695.90x = 24,053,110,458.44
  5. Step 5: Solve for x
    x = 24,053,110,458.44/191,695.90
  6. Step 6: Final answer
    x = 125,475.35

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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.