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Finding the Fourth Proportional to 170,852.76, 235,856.34 and 99,218.97

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Solution

The fourth proportional to 170,852.76, 235,856.34 and 99,218.97 is: 136,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,852.76 : 235,856.34 = 99,218.97 : x
  2. Step 2: Convert to fraction form
    170,852.76/235,856.34 = 99,218.97/x
  3. Step 3: Cross multiply
    170,852.76x = 235,856.34 × 99,218.97
  4. Step 4: Simplify right side
    170,852.76x = 23,401,423,122.77
  5. Step 5: Solve for x
    x = 23,401,423,122.77/170,852.76
  6. Step 6: Final answer
    x = 136,968.36

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1.5x scale

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.