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Finding the Fourth Proportional to 355,742.91, 533,574.90 and 89,503.47

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Solution

The fourth proportional to 355,742.91, 533,574.90 and 89,503.47 is: 134,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,742.91 : 533,574.90 = 89,503.47 : x
  2. Step 2: Convert to fraction form
    355,742.91/533,574.90 = 89,503.47/x
  3. Step 3: Cross multiply
    355,742.91x = 533,574.90 × 89,503.47
  4. Step 4: Simplify right side
    355,742.91x = 47,756,805,054.90
  5. Step 5: Solve for x
    x = 47,756,805,054.90/355,742.91
  6. Step 6: Final answer
    x = 134,245.28

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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.