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Finding the Fourth Proportional to 170,702.51, 235,680.42 and 152,766.68

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Solution

The fourth proportional to 170,702.51, 235,680.42 and 152,766.68 is: 210,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,702.51 : 235,680.42 = 152,766.68 : x
  2. Step 2: Convert to fraction form
    170,702.51/235,680.42 = 152,766.68/x
  3. Step 3: Cross multiply
    170,702.51x = 235,680.42 × 152,766.68
  4. Step 4: Simplify right side
    170,702.51x = 36,004,114,126.00
  5. Step 5: Solve for x
    x = 36,004,114,126.00/170,702.51
  6. Step 6: Final answer
    x = 210,917.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.