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Finding the Fourth Proportional to 94,290.84, 130,053.48 and 64,023.60

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Solution

The fourth proportional to 94,290.84, 130,053.48 and 64,023.60 is: 88,306.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,290.84 : 130,053.48 = 64,023.60 : x
  2. Step 2: Convert to fraction form
    94,290.84/130,053.48 = 64,023.60/x
  3. Step 3: Cross multiply
    94,290.84x = 130,053.48 × 64,023.60
  4. Step 4: Simplify right side
    94,290.84x = 8,326,491,982.13
  5. Step 5: Solve for x
    x = 8,326,491,982.13/94,290.84
  6. Step 6: Final answer
    x = 88,306.48

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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.