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Finding the Fourth Proportional to 120,337.51, 166,109.39 and 70,036.51

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Solution

The fourth proportional to 120,337.51, 166,109.39 and 70,036.51 is: 96,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,337.51 : 166,109.39 = 70,036.51 : x
  2. Step 2: Convert to fraction form
    120,337.51/166,109.39 = 70,036.51/x
  3. Step 3: Cross multiply
    120,337.51x = 166,109.39 × 70,036.51
  4. Step 4: Simplify right side
    120,337.51x = 11,633,721,953.83
  5. Step 5: Solve for x
    x = 11,633,721,953.83/120,337.51
  6. Step 6: Final answer
    x = 96,675.77

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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.