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Finding the Fourth Proportional to 94,587.70, 130,615.42 and 90,106.42

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Solution

The fourth proportional to 94,587.70, 130,615.42 and 90,106.42 is: 124,427.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,587.70 : 130,615.42 = 90,106.42 : x
  2. Step 2: Convert to fraction form
    94,587.70/130,615.42 = 90,106.42/x
  3. Step 3: Cross multiply
    94,587.70x = 130,615.42 × 90,106.42
  4. Step 4: Simplify right side
    94,587.70x = 11,769,287,893.00
  5. Step 5: Solve for x
    x = 11,769,287,893.00/94,587.70
  6. Step 6: Final answer
    x = 124,427.26

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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.