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Finding the Fourth Proportional to 170,393.40, 235,142.90 and 98,814.93

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Solution

The fourth proportional to 170,393.40, 235,142.90 and 98,814.93 is: 136,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,393.40 : 235,142.90 = 98,814.93 : x
  2. Step 2: Convert to fraction form
    170,393.40/235,142.90 = 98,814.93/x
  3. Step 3: Cross multiply
    170,393.40x = 235,142.90 × 98,814.93
  4. Step 4: Simplify right side
    170,393.40x = 23,235,629,203.50
  5. Step 5: Solve for x
    x = 23,235,629,203.50/170,393.40
  6. Step 6: Final answer
    x = 136,364.61

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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.