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Finding the Fourth Proportional to 70,892.82, 97,803.45 and 45,392.40

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Solution

The fourth proportional to 70,892.82, 97,803.45 and 45,392.40 is: 62,623.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892.82 : 97,803.45 = 45,392.40 : x
  2. Step 2: Convert to fraction form
    70,892.82/97,803.45 = 45,392.40/x
  3. Step 3: Cross multiply
    70,892.82x = 97,803.45 × 45,392.40
  4. Step 4: Simplify right side
    70,892.82x = 4,439,533,323.78
  5. Step 5: Solve for x
    x = 4,439,533,323.78/70,892.82
  6. Step 6: Final answer
    x = 62,623.17

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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.