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Finding the Fourth Proportional to 99,041.44, 136,674.84 and 53,718.16

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Solution

The fourth proportional to 99,041.44, 136,674.84 and 53,718.16 is: 74,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,041.44 : 136,674.84 = 53,718.16 : x
  2. Step 2: Convert to fraction form
    99,041.44/136,674.84 = 53,718.16/x
  3. Step 3: Cross multiply
    99,041.44x = 136,674.84 × 53,718.16
  4. Step 4: Simplify right side
    99,041.44x = 7,341,920,923.09
  5. Step 5: Solve for x
    x = 7,341,920,923.09/99,041.44
  6. Step 6: Final answer
    x = 74,129.79

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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.