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Finding the Fourth Proportional to 170,167.76, 254,970.80 and 98,890.32

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Solution

The fourth proportional to 170,167.76, 254,970.80 and 98,890.32 is: 148,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,167.76 : 254,970.80 = 98,890.32 : x
  2. Step 2: Convert to fraction form
    170,167.76/254,970.80 = 98,890.32/x
  3. Step 3: Cross multiply
    170,167.76x = 254,970.80 × 98,890.32
  4. Step 4: Simplify right side
    170,167.76x = 25,214,144,002.66
  5. Step 5: Solve for x
    x = 25,214,144,002.66/170,167.76
  6. Step 6: Final answer
    x = 148,172.27

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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.