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Finding the Fourth Proportional to 368,953.76, 553,396.08 and 119,637.92

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Solution

The fourth proportional to 368,953.76, 553,396.08 and 119,637.92 is: 179,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,953.76 : 553,396.08 = 119,637.92 : x
  2. Step 2: Convert to fraction form
    368,953.76/553,396.08 = 119,637.92/x
  3. Step 3: Cross multiply
    368,953.76x = 553,396.08 × 119,637.92
  4. Step 4: Simplify right side
    368,953.76x = 66,207,155,947.35
  5. Step 5: Solve for x
    x = 66,207,155,947.35/368,953.76
  6. Step 6: Final answer
    x = 179,445.67

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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.