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Finding the Fourth Proportional to 118,476.77, 163,485.78 and 70,723.62

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Solution

The fourth proportional to 118,476.77, 163,485.78 and 70,723.62 is: 97,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,476.77 : 163,485.78 = 70,723.62 : x
  2. Step 2: Convert to fraction form
    118,476.77/163,485.78 = 70,723.62/x
  3. Step 3: Cross multiply
    118,476.77x = 163,485.78 × 70,723.62
  4. Step 4: Simplify right side
    118,476.77x = 11,562,306,180.12
  5. Step 5: Solve for x
    x = 11,562,306,180.12/118,476.77
  6. Step 6: Final answer
    x = 97,591.34

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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.