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Finding the Fourth Proportional to 113,315.90, 169,973.85 and 54,266.90

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Solution

The fourth proportional to 113,315.90, 169,973.85 and 54,266.90 is: 81,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315.90 : 169,973.85 = 54,266.90 : x
  2. Step 2: Convert to fraction form
    113,315.90/169,973.85 = 54,266.90/x
  3. Step 3: Cross multiply
    113,315.90x = 169,973.85 × 54,266.90
  4. Step 4: Simplify right side
    113,315.90x = 9,223,953,920.57
  5. Step 5: Solve for x
    x = 9,223,953,920.57/113,315.90
  6. Step 6: Final answer
    x = 81,400.35

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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.