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Finding the Fourth Proportional to 120,347.76, 166,123.53 and 70,046.76

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Solution

The fourth proportional to 120,347.76, 166,123.53 and 70,046.76 is: 96,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,347.76 : 166,123.53 = 70,046.76 : x
  2. Step 2: Convert to fraction form
    120,347.76/166,123.53 = 70,046.76/x
  3. Step 3: Cross multiply
    120,347.76x = 166,123.53 × 70,046.76
  4. Step 4: Simplify right side
    120,347.76x = 11,636,415,036.26
  5. Step 5: Solve for x
    x = 11,636,415,036.26/120,347.76
  6. Step 6: Final answer
    x = 96,689.92

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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.