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Finding the Fourth Proportional to 110,543.79, 152,507.12 and 68,028.51

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Solution

The fourth proportional to 110,543.79, 152,507.12 and 68,028.51 is: 93,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,543.79 : 152,507.12 = 68,028.51 : x
  2. Step 2: Convert to fraction form
    110,543.79/152,507.12 = 68,028.51/x
  3. Step 3: Cross multiply
    110,543.79x = 152,507.12 × 68,028.51
  4. Step 4: Simplify right side
    110,543.79x = 10,374,832,137.99
  5. Step 5: Solve for x
    x = 10,374,832,137.99/110,543.79
  6. Step 6: Final answer
    x = 93,852.69

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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.