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Finding the Fourth Proportional to 112,064.76, 154,648.92 and 61,763.76

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Solution

The fourth proportional to 112,064.76, 154,648.92 and 61,763.76 is: 85,233.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,064.76 : 154,648.92 = 61,763.76 : x
  2. Step 2: Convert to fraction form
    112,064.76/154,648.92 = 61,763.76/x
  3. Step 3: Cross multiply
    112,064.76x = 154,648.92 × 61,763.76
  4. Step 4: Simplify right side
    112,064.76x = 9,551,698,779.14
  5. Step 5: Solve for x
    x = 9,551,698,779.14/112,064.76
  6. Step 6: Final answer
    x = 85,233.74

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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.