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Finding the Fourth Proportional to 113,509.98, 170,264.07 and 42,450.51

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Solution

The fourth proportional to 113,509.98, 170,264.07 and 42,450.51 is: 63,675.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509.98 : 170,264.07 = 42,450.51 : x
  2. Step 2: Convert to fraction form
    113,509.98/170,264.07 = 42,450.51/x
  3. Step 3: Cross multiply
    113,509.98x = 170,264.07 × 42,450.51
  4. Step 4: Simplify right side
    113,509.98x = 7,227,796,606.18
  5. Step 5: Solve for x
    x = 7,227,796,606.18/113,509.98
  6. Step 6: Final answer
    x = 63,675.43

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1.5x scale

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.