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Finding the Fourth Proportional to 92,805.51, 128,068.17 and 50,363.13

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Solution

The fourth proportional to 92,805.51, 128,068.17 and 50,363.13 is: 69,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,805.51 : 128,068.17 = 50,363.13 : x
  2. Step 2: Convert to fraction form
    92,805.51/128,068.17 = 50,363.13/x
  3. Step 3: Cross multiply
    92,805.51x = 128,068.17 × 50,363.13
  4. Step 4: Simplify right side
    92,805.51x = 6,449,913,894.57
  5. Step 5: Solve for x
    x = 6,449,913,894.57/92,805.51
  6. Step 6: Final answer
    x = 69,499.26

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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.