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Finding the Fourth Proportional to 70,437.60, 105,665.76 and 23,036.04

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Solution

The fourth proportional to 70,437.60, 105,665.76 and 23,036.04 is: 34,557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,437.60 : 105,665.76 = 23,036.04 : x
  2. Step 2: Convert to fraction form
    70,437.60/105,665.76 = 23,036.04/x
  3. Step 3: Cross multiply
    70,437.60x = 105,665.76 × 23,036.04
  4. Step 4: Simplify right side
    70,437.60x = 2,434,120,673.99
  5. Step 5: Solve for x
    x = 2,434,120,673.99/70,437.60
  6. Step 6: Final answer
    x = 34,557.12

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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.