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Finding the Fourth Proportional to 110,922.65, 153,018.15 and 65,578.55

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Solution

The fourth proportional to 110,922.65, 153,018.15 and 65,578.55 is: 90,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,922.65 : 153,018.15 = 65,578.55 : x
  2. Step 2: Convert to fraction form
    110,922.65/153,018.15 = 65,578.55/x
  3. Step 3: Cross multiply
    110,922.65x = 153,018.15 × 65,578.55
  4. Step 4: Simplify right side
    110,922.65x = 10,034,708,400.68
  5. Step 5: Solve for x
    x = 10,034,708,400.68/110,922.65
  6. Step 6: Final answer
    x = 90,465.82

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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.