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Finding the Fourth Proportional to 153,347.65, 211,604.92 and 113,083.09

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Solution

The fourth proportional to 153,347.65, 211,604.92 and 113,083.09 is: 156,043.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,347.65 : 211,604.92 = 113,083.09 : x
  2. Step 2: Convert to fraction form
    153,347.65/211,604.92 = 113,083.09/x
  3. Step 3: Cross multiply
    153,347.65x = 211,604.92 × 113,083.09
  4. Step 4: Simplify right side
    153,347.65x = 23,928,938,459.11
  5. Step 5: Solve for x
    x = 23,928,938,459.11/153,347.65
  6. Step 6: Final answer
    x = 156,043.72

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1.5x scale

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.