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Finding the Fourth Proportional to 99,352.50, 137,107.11 and 54,030.99

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Solution

The fourth proportional to 99,352.50, 137,107.11 and 54,030.99 is: 74,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,352.50 : 137,107.11 = 54,030.99 : x
  2. Step 2: Convert to fraction form
    99,352.50/137,107.11 = 54,030.99/x
  3. Step 3: Cross multiply
    99,352.50x = 137,107.11 × 54,030.99
  4. Step 4: Simplify right side
    99,352.50x = 7,408,032,889.34
  5. Step 5: Solve for x
    x = 7,408,032,889.34/99,352.50
  6. Step 6: Final answer
    x = 74,563.13

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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.