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Finding the Fourth Proportional to 92,287.50, 138,336.68 and 70,053.81

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Solution

The fourth proportional to 92,287.50, 138,336.68 and 70,053.81 is: 105,008.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,287.50 : 138,336.68 = 70,053.81 : x
  2. Step 2: Convert to fraction form
    92,287.50/138,336.68 = 70,053.81/x
  3. Step 3: Cross multiply
    92,287.50x = 138,336.68 × 70,053.81
  4. Step 4: Simplify right side
    92,287.50x = 9,691,011,496.75
  5. Step 5: Solve for x
    x = 9,691,011,496.75/92,287.50
  6. Step 6: Final answer
    x = 105,008.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.