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Finding the Fourth Proportional to 92,630.26, 127,780.45 and 56,342.81

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Solution

The fourth proportional to 92,630.26, 127,780.45 and 56,342.81 is: 77,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,630.26 : 127,780.45 = 56,342.81 : x
  2. Step 2: Convert to fraction form
    92,630.26/127,780.45 = 56,342.81/x
  3. Step 3: Cross multiply
    92,630.26x = 127,780.45 × 56,342.81
  4. Step 4: Simplify right side
    92,630.26x = 7,199,508,836.31
  5. Step 5: Solve for x
    x = 7,199,508,836.31/92,630.26
  6. Step 6: Final answer
    x = 77,723.08

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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.