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Finding the Fourth Proportional to 456,803.16, 685,270.53 and 141,284.67

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Solution

The fourth proportional to 456,803.16, 685,270.53 and 141,284.67 is: 211,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,803.16 : 685,270.53 = 141,284.67 : x
  2. Step 2: Convert to fraction form
    456,803.16/685,270.53 = 141,284.67/x
  3. Step 3: Cross multiply
    456,803.16x = 685,270.53 × 141,284.67
  4. Step 4: Simplify right side
    456,803.16x = 96,818,220,691.78
  5. Step 5: Solve for x
    x = 96,818,220,691.78/456,803.16
  6. Step 6: Final answer
    x = 211,947.35

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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.