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Finding the Fourth Proportional to 118,327.44, 163,312.90 and 69,927.30

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Solution

The fourth proportional to 118,327.44, 163,312.90 and 69,927.30 is: 96,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,327.44 : 163,312.90 = 69,927.30 : x
  2. Step 2: Convert to fraction form
    118,327.44/163,312.90 = 69,927.30/x
  3. Step 3: Cross multiply
    118,327.44x = 163,312.90 × 69,927.30
  4. Step 4: Simplify right side
    118,327.44x = 11,420,030,152.17
  5. Step 5: Solve for x
    x = 11,420,030,152.17/118,327.44
  6. Step 6: Final answer
    x = 96,512.10

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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.