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Finding the Fourth Proportional to 70,332.40, 105,491.30 and 37,038.98

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Solution

The fourth proportional to 70,332.40, 105,491.30 and 37,038.98 is: 55,554.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,332.40 : 105,491.30 = 37,038.98 : x
  2. Step 2: Convert to fraction form
    70,332.40/105,491.30 = 37,038.98/x
  3. Step 3: Cross multiply
    70,332.40x = 105,491.30 × 37,038.98
  4. Step 4: Simplify right side
    70,332.40x = 3,907,290,150.87
  5. Step 5: Solve for x
    x = 3,907,290,150.87/70,332.40
  6. Step 6: Final answer
    x = 55,554.63

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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.