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Finding the Fourth Proportional to 88,730.60, 133,095.90 and 42,074.60

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Solution

The fourth proportional to 88,730.60, 133,095.90 and 42,074.60 is: 63,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,730.60 : 133,095.90 = 42,074.60 : x
  2. Step 2: Convert to fraction form
    88,730.60/133,095.90 = 42,074.60/x
  3. Step 3: Cross multiply
    88,730.60x = 133,095.90 × 42,074.60
  4. Step 4: Simplify right side
    88,730.60x = 5,599,956,754.14
  5. Step 5: Solve for x
    x = 5,599,956,754.14/88,730.60
  6. Step 6: Final answer
    x = 63,111.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.