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Finding the Fourth Proportional to 70,507.30, 97,266.54 and 42,207.52

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Solution

The fourth proportional to 70,507.30, 97,266.54 and 42,207.52 is: 58,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,507.30 : 97,266.54 = 42,207.52 : x
  2. Step 2: Convert to fraction form
    70,507.30/97,266.54 = 42,207.52/x
  3. Step 3: Cross multiply
    70,507.30x = 97,266.54 × 42,207.52
  4. Step 4: Simplify right side
    70,507.30x = 4,105,379,432.38
  5. Step 5: Solve for x
    x = 4,105,379,432.38/70,507.30
  6. Step 6: Final answer
    x = 58,226.30

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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.