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Finding the Fourth Proportional to 82,969.89, 124,279.84 and 56,332.23

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Solution

The fourth proportional to 82,969.89, 124,279.84 and 56,332.23 is: 84,379.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,969.89 : 124,279.84 = 56,332.23 : x
  2. Step 2: Convert to fraction form
    82,969.89/124,279.84 = 56,332.23/x
  3. Step 3: Cross multiply
    82,969.89x = 124,279.84 × 56,332.23
  4. Step 4: Simplify right side
    82,969.89x = 7,000,960,531.24
  5. Step 5: Solve for x
    x = 7,000,960,531.24/82,969.89
  6. Step 6: Final answer
    x = 84,379.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.