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Finding the Fourth Proportional to 99,064.92, 136,709.13 and 53,742.93

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Solution

The fourth proportional to 99,064.92, 136,709.13 and 53,742.93 is: 74,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,064.92 : 136,709.13 = 53,742.93 : x
  2. Step 2: Convert to fraction form
    99,064.92/136,709.13 = 53,742.93/x
  3. Step 3: Cross multiply
    99,064.92x = 136,709.13 × 53,742.93
  4. Step 4: Simplify right side
    99,064.92x = 7,347,149,203.95
  5. Step 5: Solve for x
    x = 7,347,149,203.95/99,064.92
  6. Step 6: Final answer
    x = 74,164.99

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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.