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Finding the Fourth Proportional to 70,686.47, 106,045.40 and 23,316.26

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Solution

The fourth proportional to 70,686.47, 106,045.40 and 23,316.26 is: 34,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,686.47 : 106,045.40 = 23,316.26 : x
  2. Step 2: Convert to fraction form
    70,686.47/106,045.40 = 23,316.26/x
  3. Step 3: Cross multiply
    70,686.47x = 106,045.40 × 23,316.26
  4. Step 4: Simplify right side
    70,686.47x = 2,472,581,646.27
  5. Step 5: Solve for x
    x = 2,472,581,646.27/70,686.47
  6. Step 6: Final answer
    x = 34,979.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.