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Finding the Fourth Proportional to 92,797.63, 128,063.19 and 50,356.18

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Solution

The fourth proportional to 92,797.63, 128,063.19 and 50,356.18 is: 69,492.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,797.63 : 128,063.19 = 50,356.18 : x
  2. Step 2: Convert to fraction form
    92,797.63/128,063.19 = 50,356.18/x
  3. Step 3: Cross multiply
    92,797.63x = 128,063.19 × 50,356.18
  4. Step 4: Simplify right side
    92,797.63x = 6,448,773,047.01
  5. Step 5: Solve for x
    x = 6,448,773,047.01/92,797.63
  6. Step 6: Final answer
    x = 69,492.86

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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.