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Finding the Fourth Proportional to 109,718.56, 151,412.22 and 59,417.56

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Solution

The fourth proportional to 109,718.56, 151,412.22 and 59,417.56 is: 81,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,718.56 : 151,412.22 = 59,417.56 : x
  2. Step 2: Convert to fraction form
    109,718.56/151,412.22 = 59,417.56/x
  3. Step 3: Cross multiply
    109,718.56x = 151,412.22 × 59,417.56
  4. Step 4: Simplify right side
    109,718.56x = 8,996,544,666.58
  5. Step 5: Solve for x
    x = 8,996,544,666.58/109,718.56
  6. Step 6: Final answer
    x = 81,996.56

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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.