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Finding the Fourth Proportional to 156,330.68, 215,736.51 and 84,710.07

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Solution

The fourth proportional to 156,330.68, 215,736.51 and 84,710.07 is: 116,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,330.68 : 215,736.51 = 84,710.07 : x
  2. Step 2: Convert to fraction form
    156,330.68/215,736.51 = 84,710.07/x
  3. Step 3: Cross multiply
    156,330.68x = 215,736.51 × 84,710.07
  4. Step 4: Simplify right side
    156,330.68x = 18,275,055,181.32
  5. Step 5: Solve for x
    x = 18,275,055,181.32/156,330.68
  6. Step 6: Final answer
    x = 116,900.00

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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.