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Finding the Fourth Proportional to 250,632.46, 375,970.80 and 70,719.47

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Solution

The fourth proportional to 250,632.46, 375,970.80 and 70,719.47 is: 106,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,632.46 : 375,970.80 = 70,719.47 : x
  2. Step 2: Convert to fraction form
    250,632.46/375,970.80 = 70,719.47/x
  3. Step 3: Cross multiply
    250,632.46x = 375,970.80 × 70,719.47
  4. Step 4: Simplify right side
    250,632.46x = 26,588,453,478.02
  5. Step 5: Solve for x
    x = 26,588,453,478.02/250,632.46
  6. Step 6: Final answer
    x = 106,085.43

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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.