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Finding the Fourth Proportional to 82,088.46, 112,992.84 and 59,390.64

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Solution

The fourth proportional to 82,088.46, 112,992.84 and 59,390.64 is: 81,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,088.46 : 112,992.84 = 59,390.64 : x
  2. Step 2: Convert to fraction form
    82,088.46/112,992.84 = 59,390.64/x
  3. Step 3: Cross multiply
    82,088.46x = 112,992.84 × 59,390.64
  4. Step 4: Simplify right side
    82,088.46x = 6,710,717,083.02
  5. Step 5: Solve for x
    x = 6,710,717,083.02/82,088.46
  6. Step 6: Final answer
    x = 81,749.82

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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.