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Finding the Fourth Proportional to 118,113.86, 162,994.19 and 64,399.93

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Solution

The fourth proportional to 118,113.86, 162,994.19 and 64,399.93 is: 88,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,113.86 : 162,994.19 = 64,399.93 : x
  2. Step 2: Convert to fraction form
    118,113.86/162,994.19 = 64,399.93/x
  3. Step 3: Cross multiply
    118,113.86x = 162,994.19 × 64,399.93
  4. Step 4: Simplify right side
    118,113.86x = 10,496,813,696.92
  5. Step 5: Solve for x
    x = 10,496,813,696.92/118,113.86
  6. Step 6: Final answer
    x = 88,870.29

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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.