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Finding the Fourth Proportional to 99,060.92, 136,703.61 and 53,738.93

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Solution

The fourth proportional to 99,060.92, 136,703.61 and 53,738.93 is: 74,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,060.92 : 136,703.61 = 53,738.93 : x
  2. Step 2: Convert to fraction form
    99,060.92/136,703.61 = 53,738.93/x
  3. Step 3: Cross multiply
    99,060.92x = 136,703.61 × 53,738.93
  4. Step 4: Simplify right side
    99,060.92x = 7,346,305,728.54
  5. Step 5: Solve for x
    x = 7,346,305,728.54/99,060.92
  6. Step 6: Final answer
    x = 74,159.47

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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.