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Finding the Fourth Proportional to 92,899.32, 128,200.50 and 50,457.48

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Solution

The fourth proportional to 92,899.32, 128,200.50 and 50,457.48 is: 69,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,899.32 : 128,200.50 = 50,457.48 : x
  2. Step 2: Convert to fraction form
    92,899.32/128,200.50 = 50,457.48/x
  3. Step 3: Cross multiply
    92,899.32x = 128,200.50 × 50,457.48
  4. Step 4: Simplify right side
    92,899.32x = 6,468,674,164.74
  5. Step 5: Solve for x
    x = 6,468,674,164.74/92,899.32
  6. Step 6: Final answer
    x = 69,631.02

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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.