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Finding the Fourth Proportional to 118,326.32, 163,326.48 and 73,018.16

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Solution

The fourth proportional to 118,326.32, 163,326.48 and 73,018.16 is: 100,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,326.32 : 163,326.48 = 73,018.16 : x
  2. Step 2: Convert to fraction form
    118,326.32/163,326.48 = 73,018.16/x
  3. Step 3: Cross multiply
    118,326.32x = 163,326.48 × 73,018.16
  4. Step 4: Simplify right side
    118,326.32x = 11,925,799,048.88
  5. Step 5: Solve for x
    x = 11,925,799,048.88/118,326.32
  6. Step 6: Final answer
    x = 100,787.37

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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.