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Finding the Fourth Proportional to 170,516, 235,308.96 and 94,042.16

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Solution

The fourth proportional to 170,516, 235,308.96 and 94,042.16 is: 129,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,516 : 235,308.96 = 94,042.16 : x
  2. Step 2: Convert to fraction form
    170,516/235,308.96 = 94,042.16/x
  3. Step 3: Cross multiply
    170,516x = 235,308.96 × 94,042.16
  4. Step 4: Simplify right side
    170,516x = 22,128,962,865.75
  5. Step 5: Solve for x
    x = 22,128,962,865.75/170,516
  6. Step 6: Final answer
    x = 129,776.46

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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.