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Finding the Fourth Proportional to 83,361.40, 115,038.54 and 45,635.32

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Solution

The fourth proportional to 83,361.40, 115,038.54 and 45,635.32 is: 62,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,361.40 : 115,038.54 = 45,635.32 : x
  2. Step 2: Convert to fraction form
    83,361.40/115,038.54 = 45,635.32/x
  3. Step 3: Cross multiply
    83,361.40x = 115,038.54 × 45,635.32
  4. Step 4: Simplify right side
    83,361.40x = 5,249,820,585.23
  5. Step 5: Solve for x
    x = 5,249,820,585.23/83,361.40
  6. Step 6: Final answer
    x = 62,976.64

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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.