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Finding the Fourth Proportional to 156,553.99, 216,045.15 and 84,934.54

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Solution

The fourth proportional to 156,553.99, 216,045.15 and 84,934.54 is: 117,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,553.99 : 216,045.15 = 84,934.54 : x
  2. Step 2: Convert to fraction form
    156,553.99/216,045.15 = 84,934.54/x
  3. Step 3: Cross multiply
    156,553.99x = 216,045.15 × 84,934.54
  4. Step 4: Simplify right side
    156,553.99x = 18,349,695,434.48
  5. Step 5: Solve for x
    x = 18,349,695,434.48/156,553.99
  6. Step 6: Final answer
    x = 117,210.01

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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.