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Finding the Fourth Proportional to 99,117.92, 136,782.86 and 53,795.90

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Solution

The fourth proportional to 99,117.92, 136,782.86 and 53,795.90 is: 74,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,117.92 : 136,782.86 = 53,795.90 : x
  2. Step 2: Convert to fraction form
    99,117.92/136,782.86 = 53,795.90/x
  3. Step 3: Cross multiply
    99,117.92x = 136,782.86 × 53,795.90
  4. Step 4: Simplify right side
    99,117.92x = 7,358,356,105.38
  5. Step 5: Solve for x
    x = 7,358,356,105.38/99,117.92
  6. Step 6: Final answer
    x = 74,238.41

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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.