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Finding the Fourth Proportional to 156,482.94, 215,940.63 and 92,782.62

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Solution

The fourth proportional to 156,482.94, 215,940.63 and 92,782.62 is: 128,036.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,482.94 : 215,940.63 = 92,782.62 : x
  2. Step 2: Convert to fraction form
    156,482.94/215,940.63 = 92,782.62/x
  3. Step 3: Cross multiply
    156,482.94x = 215,940.63 × 92,782.62
  4. Step 4: Simplify right side
    156,482.94x = 20,035,537,415.85
  5. Step 5: Solve for x
    x = 20,035,537,415.85/156,482.94
  6. Step 6: Final answer
    x = 128,036.56

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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.