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Finding the Fourth Proportional to 70,885,592, 97,822,168.80 and 38,290,544

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Solution

The fourth proportional to 70,885,592, 97,822,168.80 and 38,290,544 is: 52,840,978.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,885,592 : 97,822,168.80 = 38,290,544 : x
  2. Step 2: Convert to fraction form
    70,885,592/97,822,168.80 = 38,290,544/x
  3. Step 3: Cross multiply
    70,885,592x = 97,822,168.80 × 38,290,544
  4. Step 4: Simplify right side
    70,885,592x = 3,745,664,058,611,827
  5. Step 5: Solve for x
    x = 3,745,664,058,611,827/70,885,592
  6. Step 6: Final answer
    x = 52,840,978.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.