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Finding the Fourth Proportional to 118,015.50, 162,859.33 and 64,300.90

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Solution

The fourth proportional to 118,015.50, 162,859.33 and 64,300.90 is: 88,734.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,015.50 : 162,859.33 = 64,300.90 : x
  2. Step 2: Convert to fraction form
    118,015.50/162,859.33 = 64,300.90/x
  3. Step 3: Cross multiply
    118,015.50x = 162,859.33 × 64,300.90
  4. Step 4: Simplify right side
    118,015.50x = 10,472,001,492.40
  5. Step 5: Solve for x
    x = 10,472,001,492.40/118,015.50
  6. Step 6: Final answer
    x = 88,734.12

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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.