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Finding the Fourth Proportional to 110,429.74, 152,393.01 and 60,128.74

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Solution

The fourth proportional to 110,429.74, 152,393.01 and 60,128.74 is: 82,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,429.74 : 152,393.01 = 60,128.74 : x
  2. Step 2: Convert to fraction form
    110,429.74/152,393.01 = 60,128.74/x
  3. Step 3: Cross multiply
    110,429.74x = 152,393.01 × 60,128.74
  4. Step 4: Simplify right side
    110,429.74x = 9,163,199,676.11
  5. Step 5: Solve for x
    x = 9,163,199,676.11/110,429.74
  6. Step 6: Final answer
    x = 82,977.64

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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.