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Finding the Fourth Proportional to 153,298.96, 211,537.90 and 113,034.46

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Solution

The fourth proportional to 153,298.96, 211,537.90 and 113,034.46 is: 155,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,298.96 : 211,537.90 = 113,034.46 : x
  2. Step 2: Convert to fraction form
    153,298.96/211,537.90 = 113,034.46/x
  3. Step 3: Cross multiply
    153,298.96x = 211,537.90 × 113,034.46
  4. Step 4: Simplify right side
    153,298.96x = 23,911,072,296.03
  5. Step 5: Solve for x
    x = 23,911,072,296.03/153,298.96
  6. Step 6: Final answer
    x = 155,976.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.