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Finding the Fourth Proportional to 156,088.94, 215,403.28 and 84,468.94

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Solution

The fourth proportional to 156,088.94, 215,403.28 and 84,468.94 is: 116,567.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,088.94 : 215,403.28 = 84,468.94 : x
  2. Step 2: Convert to fraction form
    156,088.94/215,403.28 = 84,468.94/x
  3. Step 3: Cross multiply
    156,088.94x = 215,403.28 × 84,468.94
  4. Step 4: Simplify right side
    156,088.94x = 18,194,887,671.22
  5. Step 5: Solve for x
    x = 18,194,887,671.22/156,088.94
  6. Step 6: Final answer
    x = 116,567.44

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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.