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Finding the Fourth Proportional to 92,068.83, 127,040.11 and 51,780.19

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Solution

The fourth proportional to 92,068.83, 127,040.11 and 51,780.19 is: 71,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,068.83 : 127,040.11 = 51,780.19 : x
  2. Step 2: Convert to fraction form
    92,068.83/127,040.11 = 51,780.19/x
  3. Step 3: Cross multiply
    92,068.83x = 127,040.11 × 51,780.19
  4. Step 4: Simplify right side
    92,068.83x = 6,578,161,033.42
  5. Step 5: Solve for x
    x = 6,578,161,033.42/92,068.83
  6. Step 6: Final answer
    x = 71,448.30

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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.