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Finding the Fourth Proportional to 191,754.30, 287,740.80 and 132,632.40

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Solution

The fourth proportional to 191,754.30, 287,740.80 and 132,632.40 is: 199,024.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,754.30 : 287,740.80 = 132,632.40 : x
  2. Step 2: Convert to fraction form
    191,754.30/287,740.80 = 132,632.40/x
  3. Step 3: Cross multiply
    191,754.30x = 287,740.80 × 132,632.40
  4. Step 4: Simplify right side
    191,754.30x = 38,163,752,881.92
  5. Step 5: Solve for x
    x = 38,163,752,881.92/191,754.30
  6. Step 6: Final answer
    x = 199,024.24

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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.