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Finding the Fourth Proportional to 92,802.85, 128,068.01 and 50,361.38

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Solution

The fourth proportional to 92,802.85, 128,068.01 and 50,361.38 is: 69,498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,802.85 : 128,068.01 = 50,361.38 : x
  2. Step 2: Convert to fraction form
    92,802.85/128,068.01 = 50,361.38/x
  3. Step 3: Cross multiply
    92,802.85x = 128,068.01 × 50,361.38
  4. Step 4: Simplify right side
    92,802.85x = 6,449,681,636.06
  5. Step 5: Solve for x
    x = 6,449,681,636.06/92,802.85
  6. Step 6: Final answer
    x = 69,498.75

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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.