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Finding the Fourth Proportional to 118,630.40, 163,705.08 and 70,910.06

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Solution

The fourth proportional to 118,630.40, 163,705.08 and 70,910.06 is: 97,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.40 : 163,705.08 = 70,910.06 : x
  2. Step 2: Convert to fraction form
    118,630.40/163,705.08 = 70,910.06/x
  3. Step 3: Cross multiply
    118,630.40x = 163,705.08 × 70,910.06
  4. Step 4: Simplify right side
    118,630.40x = 11,608,337,045.10
  5. Step 5: Solve for x
    x = 11,608,337,045.10/118,630.40
  6. Step 6: Final answer
    x = 97,852.97

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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.