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Finding the Fourth Proportional to 134,391.63, 185,477.58 and 86,783.37

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Solution

The fourth proportional to 134,391.63, 185,477.58 and 86,783.37 is: 119,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,391.63 : 185,477.58 = 86,783.37 : x
  2. Step 2: Convert to fraction form
    134,391.63/185,477.58 = 86,783.37/x
  3. Step 3: Cross multiply
    134,391.63x = 185,477.58 × 86,783.37
  4. Step 4: Simplify right side
    134,391.63x = 16,096,369,451.84
  5. Step 5: Solve for x
    x = 16,096,369,451.84/134,391.63
  6. Step 6: Final answer
    x = 119,772.11

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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.