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Finding the Fourth Proportional to 192,665.18, 265,931.43 and 112,108.32

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Solution

The fourth proportional to 192,665.18, 265,931.43 and 112,108.32 is: 154,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,665.18 : 265,931.43 = 112,108.32 : x
  2. Step 2: Convert to fraction form
    192,665.18/265,931.43 = 112,108.32/x
  3. Step 3: Cross multiply
    192,665.18x = 265,931.43 × 112,108.32
  4. Step 4: Simplify right side
    192,665.18x = 29,813,125,852.50
  5. Step 5: Solve for x
    x = 29,813,125,852.50/192,665.18
  6. Step 6: Final answer
    x = 154,740.60

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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.