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Finding the Fourth Proportional to 70,530.65, 105,721.55 and 23,133.35

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Solution

The fourth proportional to 70,530.65, 105,721.55 and 23,133.35 is: 34,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.65 : 105,721.55 = 23,133.35 : x
  2. Step 2: Convert to fraction form
    70,530.65/105,721.55 = 23,133.35/x
  3. Step 3: Cross multiply
    70,530.65x = 105,721.55 × 23,133.35
  4. Step 4: Simplify right side
    70,530.65x = 2,445,693,389.52
  5. Step 5: Solve for x
    x = 2,445,693,389.52/70,530.65
  6. Step 6: Final answer
    x = 34,675.61

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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.