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Finding the Fourth Proportional to 92,841.19, 128,120.70 and 50,399.74

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Solution

The fourth proportional to 92,841.19, 128,120.70 and 50,399.74 is: 69,551.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,841.19 : 128,120.70 = 50,399.74 : x
  2. Step 2: Convert to fraction form
    92,841.19/128,120.70 = 50,399.74/x
  3. Step 3: Cross multiply
    92,841.19x = 128,120.70 × 50,399.74
  4. Step 4: Simplify right side
    92,841.19x = 6,457,249,968.62
  5. Step 5: Solve for x
    x = 6,457,249,968.62/92,841.19
  6. Step 6: Final answer
    x = 69,551.56

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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.