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Finding the Fourth Proportional to 107,051.60, 147,740.28 and 59,319.92

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Solution

The fourth proportional to 107,051.60, 147,740.28 and 59,319.92 is: 81,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,051.60 : 147,740.28 = 59,319.92 : x
  2. Step 2: Convert to fraction form
    107,051.60/147,740.28 = 59,319.92/x
  3. Step 3: Cross multiply
    107,051.60x = 147,740.28 × 59,319.92
  4. Step 4: Simplify right side
    107,051.60x = 8,763,941,590.38
  5. Step 5: Solve for x
    x = 8,763,941,590.38/107,051.60
  6. Step 6: Final answer
    x = 81,866.52

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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.