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Finding the Fourth Proportional to 72,432,004.80, 108,648,007.20 and 23,917,346.40

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Solution

The fourth proportional to 72,432,004.80, 108,648,007.20 and 23,917,346.40 is: 35,876,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432,004.80 : 108,648,007.20 = 23,917,346.40 : x
  2. Step 2: Convert to fraction form
    72,432,004.80/108,648,007.20 = 23,917,346.40/x
  3. Step 3: Cross multiply
    72,432,004.80x = 108,648,007.20 × 23,917,346.40
  4. Step 4: Simplify right side
    72,432,004.80x = 2,598,572,023,872,094
  5. Step 5: Solve for x
    x = 2,598,572,023,872,094/72,432,004.80
  6. Step 6: Final answer
    x = 35,876,019.60

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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.