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Finding the Fourth Proportional to 113,075.25, 169,690.64 and 39,203.25

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Solution

The fourth proportional to 113,075.25, 169,690.64 and 39,203.25 is: 58,831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,075.25 : 169,690.64 = 39,203.25 : x
  2. Step 2: Convert to fraction form
    113,075.25/169,690.64 = 39,203.25/x
  3. Step 3: Cross multiply
    113,075.25x = 169,690.64 × 39,203.25
  4. Step 4: Simplify right side
    113,075.25x = 6,652,424,582.58
  5. Step 5: Solve for x
    x = 6,652,424,582.58/113,075.25
  6. Step 6: Final answer
    x = 58,831.84

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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.