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Finding the Fourth Proportional to 109,315.74, 150,863.56 and 60,920.93

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Solution

The fourth proportional to 109,315.74, 150,863.56 and 60,920.93 is: 84,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.74 : 150,863.56 = 60,920.93 : x
  2. Step 2: Convert to fraction form
    109,315.74/150,863.56 = 60,920.93/x
  3. Step 3: Cross multiply
    109,315.74x = 150,863.56 × 60,920.93
  4. Step 4: Simplify right side
    109,315.74x = 9,190,748,097.24
  5. Step 5: Solve for x
    x = 9,190,748,097.24/109,315.74
  6. Step 6: Final answer
    x = 84,075.25

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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.