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Finding the Fourth Proportional to 109,785.48, 151,503.96 and 59,484.48

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Solution

The fourth proportional to 109,785.48, 151,503.96 and 59,484.48 is: 82,088.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,785.48 : 151,503.96 = 59,484.48 : x
  2. Step 2: Convert to fraction form
    109,785.48/151,503.96 = 59,484.48/x
  3. Step 3: Cross multiply
    109,785.48x = 151,503.96 × 59,484.48
  4. Step 4: Simplify right side
    109,785.48x = 9,012,134,278.54
  5. Step 5: Solve for x
    x = 9,012,134,278.54/109,785.48
  6. Step 6: Final answer
    x = 82,088.58

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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.