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Finding the Fourth Proportional to 94,421.80, 130,305.80 and 51,984.28

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Solution

The fourth proportional to 94,421.80, 130,305.80 and 51,984.28 is: 71,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,421.80 : 130,305.80 = 51,984.28 : x
  2. Step 2: Convert to fraction form
    94,421.80/130,305.80 = 51,984.28/x
  3. Step 3: Cross multiply
    94,421.80x = 130,305.80 × 51,984.28
  4. Step 4: Simplify right side
    94,421.80x = 6,773,853,192.82
  5. Step 5: Solve for x
    x = 6,773,853,192.82/94,421.80
  6. Step 6: Final answer
    x = 71,740.35

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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.