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Finding the Fourth Proportional to 170,487.10, 255,730.65 and 75,695.01

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Solution

The fourth proportional to 170,487.10, 255,730.65 and 75,695.01 is: 113,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,487.10 : 255,730.65 = 75,695.01 : x
  2. Step 2: Convert to fraction form
    170,487.10/255,730.65 = 75,695.01/x
  3. Step 3: Cross multiply
    170,487.10x = 255,730.65 × 75,695.01
  4. Step 4: Simplify right side
    170,487.10x = 19,357,534,109.06
  5. Step 5: Solve for x
    x = 19,357,534,109.06/170,487.10
  6. Step 6: Final answer
    x = 113,542.52

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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.