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Finding the Fourth Proportional to 70,563.66, 97,374.39 and 38,731.98

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Solution

The fourth proportional to 70,563.66, 97,374.39 and 38,731.98 is: 53,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,563.66 : 97,374.39 = 38,731.98 : x
  2. Step 2: Convert to fraction form
    70,563.66/97,374.39 = 38,731.98/x
  3. Step 3: Cross multiply
    70,563.66x = 97,374.39 × 38,731.98
  4. Step 4: Simplify right side
    70,563.66x = 3,771,502,925.99
  5. Step 5: Solve for x
    x = 3,771,502,925.99/70,563.66
  6. Step 6: Final answer
    x = 53,448.23

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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.