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Finding the Fourth Proportional to 72,295,893.60, 108,443,840.40 and 24,426,146.40

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Solution

The fourth proportional to 72,295,893.60, 108,443,840.40 and 24,426,146.40 is: 36,639,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295,893.60 : 108,443,840.40 = 24,426,146.40 : x
  2. Step 2: Convert to fraction form
    72,295,893.60/108,443,840.40 = 24,426,146.40/x
  3. Step 3: Cross multiply
    72,295,893.60x = 108,443,840.40 × 24,426,146.40
  4. Step 4: Simplify right side
    72,295,893.60x = 2,648,865,121,788,634.50
  5. Step 5: Solve for x
    x = 2,648,865,121,788,634.50/72,295,893.60
  6. Step 6: Final answer
    x = 36,639,219.60

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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.