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Finding the Fourth Proportional to 97,397.61, 134,410.80 and 53,790.03

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Solution

The fourth proportional to 97,397.61, 134,410.80 and 53,790.03 is: 74,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,397.61 : 134,410.80 = 53,790.03 : x
  2. Step 2: Convert to fraction form
    97,397.61/134,410.80 = 53,790.03/x
  3. Step 3: Cross multiply
    97,397.61x = 134,410.80 × 53,790.03
  4. Step 4: Simplify right side
    97,397.61x = 7,229,960,964.32
  5. Step 5: Solve for x
    x = 7,229,960,964.32/97,397.61
  6. Step 6: Final answer
    x = 74,231.40

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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.