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Finding the Fourth Proportional to 92,012,572.40, 137,901,635.40 and 48,902,428.40

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Solution

The fourth proportional to 92,012,572.40, 137,901,635.40 and 48,902,428.40 is: 73,291,341.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,012,572.40 : 137,901,635.40 = 48,902,428.40 : x
  2. Step 2: Convert to fraction form
    92,012,572.40/137,901,635.40 = 48,902,428.40/x
  3. Step 3: Cross multiply
    92,012,572.40x = 137,901,635.40 × 48,902,428.40
  4. Step 4: Simplify right side
    92,012,572.40x = 6,743,724,851,391,405
  5. Step 5: Solve for x
    x = 6,743,724,851,391,405/92,012,572.40
  6. Step 6: Final answer
    x = 73,291,341.34

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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.