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Finding the Fourth Proportional to 109,362.84, 150,909.93 and 61,624.68

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Solution

The fourth proportional to 109,362.84, 150,909.93 and 61,624.68 is: 85,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,362.84 : 150,909.93 = 61,624.68 : x
  2. Step 2: Convert to fraction form
    109,362.84/150,909.93 = 61,624.68/x
  3. Step 3: Cross multiply
    109,362.84x = 150,909.93 × 61,624.68
  4. Step 4: Simplify right side
    109,362.84x = 9,299,776,145.07
  5. Step 5: Solve for x
    x = 9,299,776,145.07/109,362.84
  6. Step 6: Final answer
    x = 85,035.98

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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.