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Finding the Fourth Proportional to 75,390.84, 104,035.84 and 45,192.84

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Solution

The fourth proportional to 75,390.84, 104,035.84 and 45,192.84 is: 62,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,390.84 : 104,035.84 = 45,192.84 : x
  2. Step 2: Convert to fraction form
    75,390.84/104,035.84 = 45,192.84/x
  3. Step 3: Cross multiply
    75,390.84x = 104,035.84 × 45,192.84
  4. Step 4: Simplify right side
    75,390.84x = 4,701,675,071.39
  5. Step 5: Solve for x
    x = 4,701,675,071.39/75,390.84
  6. Step 6: Final answer
    x = 62,364.01

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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.