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Finding the Fourth Proportional to 94,722.40, 142,148.40 and 52,602.40

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Solution

The fourth proportional to 94,722.40, 142,148.40 and 52,602.40 is: 78,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,722.40 : 142,148.40 = 52,602.40 : x
  2. Step 2: Convert to fraction form
    94,722.40/142,148.40 = 52,602.40/x
  3. Step 3: Cross multiply
    94,722.40x = 142,148.40 × 52,602.40
  4. Step 4: Simplify right side
    94,722.40x = 7,477,346,996.16
  5. Step 5: Solve for x
    x = 7,477,346,996.16/94,722.40
  6. Step 6: Final answer
    x = 78,939.59

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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.