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Finding the Fourth Proportional to 113,513.65, 170,048.82 and 69,030.07

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Solution

The fourth proportional to 113,513.65, 170,048.82 and 69,030.07 is: 103,410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,513.65 : 170,048.82 = 69,030.07 : x
  2. Step 2: Convert to fraction form
    113,513.65/170,048.82 = 69,030.07/x
  3. Step 3: Cross multiply
    113,513.65x = 170,048.82 × 69,030.07
  4. Step 4: Simplify right side
    113,513.65x = 11,738,482,349.99
  5. Step 5: Solve for x
    x = 11,738,482,349.99/113,513.65
  6. Step 6: Final answer
    x = 103,410.31

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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.