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Finding the Fourth Proportional to 72,213,692.40, 108,251,495.40 and 26,763,298.80

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Solution

The fourth proportional to 72,213,692.40, 108,251,495.40 and 26,763,298.80 is: 40,119,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,213,692.40 : 108,251,495.40 = 26,763,298.80 : x
  2. Step 2: Convert to fraction form
    72,213,692.40/108,251,495.40 = 26,763,298.80/x
  3. Step 3: Cross multiply
    72,213,692.40x = 108,251,495.40 × 26,763,298.80
  4. Step 4: Simplify right side
    72,213,692.40x = 2,897,167,116,937,026
  5. Step 5: Solve for x
    x = 2,897,167,116,937,026/72,213,692.40
  6. Step 6: Final answer
    x = 40,119,359.93

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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.